Linde (BOC) Oxygen Cylinder Rent in Dhaka — Daily, Weekly & Monthly Packages With Free Home Delivery

Linde Oxygen Cylinder Rent

If you need Linde oxygen cylinder rent in Dhaka, you are usually choosing on two grounds at once: brand confidence and speed of delivery. Medical Product BD supplies genuine Linde (BOC) medical oxygen cylinders on rent from our Mirpur 2 store, with free home delivery and setup inside Dhaka city.

Linde is one of the world’s established medical and industrial gas companies, and Linde/BOC cylinders are marketed across Bangladesh as the premium option alongside China and Islam brand cylinders. The standard cylinder we rent holds approximately 1.4 cubic metres of compressed medical oxygen at around 2,000 PSI, stands roughly 3 feet tall and weighs about 16 kg.

Why Choose This Rental Service

Every cylinder is pressure-checked, valve-checked and matched to a compatible regulator before it leaves our store. Our team asks which flow rate your doctor prescribed before recommending a cylinder and rental period, so you are not paying for capacity you do not need — or, more importantly, receiving less reserve than the prescription requires.

One point of honesty: a premium brand does not make the oxygen inside medically superior. Medical oxygen is medical oxygen. What you pay for with Linde is cylinder build, documentation, traceability and refill-network support. If your budget is tight, a properly certified China or Islam cylinder can serve the same clinical purpose, and we will tell you so.

Call or WhatsApp 01811122698 to check today’s Linde stock, package contents and delivery time.

Key Features of the Linde (BOC) Oxygen Cylinder

Cylinder Build and Capacity

• Genuine Linde / BOC branded medical oxygen cylinder with manufacturer markings you can verify on delivery.
• Approximately 1.4 cubic metre capacity, equal to roughly 1,400 litres of compressed oxygen.
• High-pressure storage at about 2,000 PSI, giving a substantial reserve between refills.
• Standard medium size at roughly 3 feet / 36 inches, suitable for bedside placement with a trolley.
• Approximately 16 kg cylinder weight, stable when upright and secured.
• Fully refillable, with a supported refill and exchange service in Dhaka.

Clinical and Accessory Compatibility

• Compatible with standard medical oxygen regulators and flow meters, with one current listing specifying around 50 PSI regulator pressure.
• Works with nasal cannula and oxygen mask, so the delivery method your doctor recommended continues unchanged.
• Humidifier bottle connection to reduce nasal and throat dryness during longer therapy.
• Oxygen purity commonly stated at 99% or higher in current supplier listings when filled with medical-grade oxygen.
• Cylinder trolley compatible for safe indoor movement between rooms.
• No electricity required, so oxygen stays available during load shedding.

Rental and Service Features

• Five rental durations — daily, 7-day, 10-day, 15-day and 30-day packages.
• Free home delivery inside Dhaka, with delivery and basic setup generally targeted within about one hour.
• Linde refill service at ৳900 with home delivery in Dhaka.
• Setup demonstration at handover, covering regulator fitting, gauge reading and safe placement.
• Emergency and short-notice rental support on 01811122698.

Specifications and Rental Package Contents

Full Specification Table

Technical note: Specifications vary by model, production batch and country of manufacture. Backup duration is not a fixed specification — it changes with filled pressure, prescribed flow rate and regulator efficiency. Current Bangladesh listings for a 1.4 CBM Linde cylinder estimate approximately 10–12 hours at 2 LPM, which should be treated as an approximation only.

Understanding Capacity and Backup Duration

Capacity decides how often you refill. A 1.4 CBM Linde cylinder holds roughly twice the oxygen of a 0.6–0.7 CBM portable mini cylinder, so at the same flow rate it lasts roughly twice as long. That is the main reason it suits bedside home therapy rather than travel.

Flow rate changes the arithmetic quickly. A duration estimate quoted at 2 LPM roughly halves at 4 LPM and drops further at 5 LPM or above. Never plan a therapy schedule around the maximum quoted figure, and for any oxygen-dependent patient keep a second filled cylinder in reserve.

What the Rental Package Includes

Depending on the package selected, your Linde oxygen cylinder rent setup may include:

• Linde / BOC medical oxygen cylinder, filled
• Oxygen regulator with flow meter
• Pressure gauge
• Humidifier bottle
• Nasal cannula
• Oxygen mask
• Cylinder trolley
• Cylinder key or spanner
• Free delivery and basic setup inside Dhaka

Not every package includes every accessory. Confirm the exact contents on the phone before booking.

Optional Accessories You Can Add

• Additional nasal cannula or mask for hygiene rotation
• Replacement humidifier bottle
• Extension tubing for bedside or two-room use
• Second regulator for a backup cylinder
• Cylinder stand as an alternative to a trolley

Linde Oxygen Cylinder Rent Price in Dhaka

Current Rental and Refill Price Table

Pricing note: These are Medical Product BD rates as published in August 2026. A refundable security deposit may apply. Prices, stock and delivery timing can change — call 01811122698 to confirm today’s rate before ordering.

Why Linde Oxygen Cylinder Rent Costs More

The most common question we hear is why Linde costs more than a China or Islam cylinder. The honest answer is that it is not because the oxygen itself is different.

The premium reflects brand reputation and international standing, cylinder build quality and documented specifications, quality-control and handling requirements for premium branded medical gas equipment, original documentation and traceability supplied with the cylinder, a specialised refill network that prices above standard cylinders, and general premium positioning in the Bangladesh market.

Important: a higher price does not mean Linde is medically necessary for every patient. The right cylinder is the one that meets the required standards, matches the prescribed flow rate, is properly maintained, and fits the family’s budget.

The Real Gap Between Linde and Standard Cylinders

For rental specifically, the difference is smaller than most people expect. Our monthly Linde package is ৳5,000 against ৳4,500 for China or Islam — a ৳500 gap over 30 days. For customers who specifically want the Linde brand and its documentation, that is a modest premium.

The gap on refills is narrower still: ৳900 for Linde against ৳800 for standard cylinders. Over a month of moderate use, brand choice affects your total by a few hundred taka, not thousands.

Rent or Buy — Which Costs Less?

Renting makes sense when oxygen is temporary: post-discharge recovery, a few weeks of therapy, emergency backup, or when you simply want access to a premium cylinder without the full purchase outlay. Buying starts to make sense when therapy will run for many months, when the cylinder will be in constant use, or when accumulated rental approaches the roughly ৳16,000 purchase price of a full Linde set.

At ৳5,000 per month, the crossover point sits at around three months of continuous rental. If your doctor expects therapy beyond that, ask us about purchase — and about whether an oxygen concentrator with cylinder backup would suit the case better.

Benefits of Renting a Linde (BOC) Oxygen Cylinder

Practical Everyday Benefits

1. Large oxygen reserve. Roughly 1.4 CBM means fewer refill interruptions than a portable cylinder for the same prescription.
2. Cost proportional to need. Pay ৳500 for a single day or ৳5,000 for a month instead of ৳16,000 upfront.
3. Free delivery and setup in Dhaka. No travelling to a shop and no wrestling a 16 kg cylinder into a rickshaw.
4. Brand documentation you can verify. Original Linde markings and paperwork available for inspection at handover.

Clinical and Safety Benefits

5. Independent of electricity. Oxygen keeps flowing through load shedding, generator failure and concentrator faults.
6. Complete accessory set from one supplier. Regulator, humidifier, cannula, mask and trolley arrive matched and fitted.
7. Professional setup and demonstration. Correct regulator fitting and gauge reading reduce the risk of misuse at home.

Linde vs Other Oxygen Cylinder Options

Linde vs China Oxygen Cylinder

Advantages of Linde: brand assurance, documentation, established refill ecosystem, slightly larger capacity. Limitations: higher rental and refill cost, heavier cylinder, no clinical advantage in the gas itself. Best use cases: customers who specifically want a documented premium brand, and institutional buyers who need traceability.

Linde vs Islam Oxygen Cylinder

Both serve prescribed home oxygen therapy. Choose on documentation preference and budget, not on an assumed difference in oxygen quality.

Linde Cylinder vs Oxygen Concentrator

A Linde cylinder stores compressed oxygen, needs refilling and works without power. A concentrator draws oxygen from room air, runs continuously while powered and never needs gas refills, but stops the moment electricity fails.

Best use cases: the two complement each other. Many Dhaka households run a concentrator daily and keep a filled Linde cylinder as outage backup. For any oxygen-dependent patient, the treating physician or respiratory-care professional decides the appropriate oxygen source.

Comparing Suppliers Fairly

Rental quotes across Dhaka vary widely for the same brand. Before comparing headline prices, line up the full package: cylinder capacity, accessories included, security deposit, refill charge, delivery fee outside the free zone, and pickup terms. A cheaper rental that excludes the regulator and trolley is rarely cheaper once you add them.

Applications of a Linde Oxygen Cylinder

Home and Community Care

1. Prescribed home oxygen therapy
2. Post-hospital recovery and discharge support
3. Elderly patient care at home
4. Home nursing and caregiver-supported therapy
5. Palliative and long-term home care
6. Respiratory support for chronic conditions under medical supervision

Clinical and Institutional Use

7. Clinics, chambers and diagnostic centres
8. Nursing homes and small healthcare facilities
9. Hospital supplementary and backup supply
10. Dental and day-procedure rooms

Emergency and Transport

11. Emergency oxygen backup during power failure or concentrator fault
12. Patient transportation between facilities or from hospital to home

The appropriate oxygen flow rate for any application must be determined by a qualified healthcare professional.

Package Includes

Standard Rental Delivery

• 1 × Linde / BOC medical oxygen cylinder, filled
• 1 × oxygen regulator with flow meter and pressure gauge
• 1 × humidifier bottle
• 1 × nasal cannula
• 1 × oxygen mask (package dependent)
• 1 × cylinder trolley (package dependent)
• 1 × cylinder key or spanner
• Free home delivery and basic setup inside Dhaka

Documentation and Support

• Cylinder markings and original Linde documentation available for verification
• Usage demonstration at handover
• Contact number for refill scheduling and technical support
• Rental terms, deposit amount and return conditions explained before handover

What to Confirm at Booking

Confirm the cylinder brand and capacity, filled pressure at delivery, accessories included, rental duration, security deposit, refill charge, delivery coverage for your area, and the pickup arrangement at the end of the rental. Two minutes on the phone prevents most rental disputes.

Who Should Rent a Linde Oxygen Cylinder

Home Patients and Families

Patients prescribed supplemental oxygen who need a substantial bedside reserve are the primary users — post-surgical patients recovering at home, elderly patients on regular therapy, patients discharged from hospital with continuing oxygen needs, and households wanting a dependable standby cylinder for a family member with a chronic respiratory condition.

Hospitals, Clinics and Care Facilities

Clinics, diagnostic centres, nursing homes, physiotherapy units and dental chambers rent Linde cylinders as backup or supplementary supply. Documentation and brand traceability matter more in institutional settings, which is a large part of why facilities specifically request Linde oxygen cylinder rent. We handle bulk and repeat orders for institutional customers.

Emergency and Backup Users

Concentrator users, families in areas with frequent load shedding, and anyone who has already experienced a cylinder running empty at 3 a.m. keep a filled Linde cylinder ready. Daily rental at ৳500 makes short-notice backup affordable.

Important: Do not start oxygen therapy or change a prescribed flow rate without medical advice. For severe breathing difficulty, contact emergency medical services immediately — arranging a cylinder must never delay urgent treatment.

Why Choose Medical Product BD

Product Quality and Pricing

• Genuine products. Linde / BOC cylinders with verifiable markings, pressure-checked and valve-checked before dispatch.
• Competitive pricing. Published rental rates from ৳500 daily to ৳5,000 monthly, with deposit and refill cost quoted upfront rather than after delivery.
• Bulk orders. Arrangements for hospitals, clinics, nursing homes and corporate medical rooms.

Delivery and Installation

• Fast delivery. Free home delivery inside Dhaka, generally targeted within about one hour depending on traffic, weather and stock.
• Nationwide delivery. Courier and transport options outside Dhaka on request.
• Installation support. Regulator fitting, leak check and gauge demonstration at handover.

Support and Service

• Expert advice. Staff who ask about the prescribed flow rate before recommending a cylinder and rental period.
• Technical support. Phone guidance for regulator issues, gauge questions and refill scheduling.
• Warranty. Rental equipment covered under the applicable rental and service terms, explained before handover.
• After-sales service. Refill collection, cylinder exchange and accessory replacement across our rental fleet of Linde, Islam, China and portable cylinders.

Buying and Rental Guide: Choosing the Right Linde Cylinder Package

Step 1 — Start With the Prescription, Not the Brand

The right cylinder is decided by one number: the litres per minute your doctor prescribed. A patient on 1–2 LPM intermittently has entirely different needs from a patient on 5 LPM continuously. Bring the prescription or discharge summary to the conversation. Any supplier who recommends a cylinder without asking about flow rate is guessing.

Then define the duration. Oxygen needed for a few days points to daily or weekly rental. Oxygen needed for months points toward purchase, or toward a concentrator with cylinder backup.

Step 2 — Match Capacity to Realistic Usage

A 1.4 CBM Linde cylinder is estimated at roughly 10–12 hours at 2 LPM. Halve that at 4 LPM. Work out the longest single stretch you must cover — a night, a typical outage, a journey — and choose capacity with margin above it. Never plan to run a cylinder to empty; refill or exchange once the gauge enters the low zone.

Step 3 — Check the Specifications That Matter

Prioritise filled working pressure at delivery, oxygen purity, regulator compatibility and flow range, cylinder condition and valve integrity, and a functioning pressure gauge. Ask to see the cylinder markings and Linde documentation — if a supplier cannot produce them, you are paying a premium for a brand you cannot verify.

Step 4 — Budget Beyond the Headline Rate

The rental figure is not your total cost. Build the budget from four parts: the rental package, the refundable security deposit, refills at ৳900 each, and any delivery charge outside the free zone. A 30-day Linde rental at ৳5,000 with two refills lands near ৳6,800 before deposit — still well below the ৳16,000 purchase price, but meaningfully above the advertised figure.

Step 5 — Compare Packages, Not Just Prices

Compare on capacity, accessory completeness, refill policy and delivery terms. A package missing a regulator, humidifier and trolley is not cheaper once those are added. Similarly, a regulator with a narrow flow range may not reach your prescribed setting.

Common Mistakes and Our Recommendation

Avoid these: choosing on brand prestige alone without checking capacity against flow rate; assuming premium branding means medically superior oxygen; forgetting refill costs when comparing packages; expecting a cylinder to need charging when it needs oxygen refilling; accepting delivery without checking the pressure gauge; relying on a single cylinder for a patient on continuous oxygen; and skipping the deposit and return policy before booking.

Our recommendation: for most Dhaka families facing a two-to-four week recovery, the 15-day or 30-day Linde package with regulator, humidifier, cannula and trolley is the sensible starting point — with a second filled cylinder on standby if the patient is oxygen-dependent. If budget is the binding constraint, a certified Islam or China cylinder at ৳4,500 monthly delivers the same medical oxygen. Call 01811122698, describe the prescription, and we will tell you honestly which option fits.

Product Care Guide and Maintenance Tips

Cleaning

Wipe the cylinder body and regulator with a clean, dry or slightly damp cloth. Never use oil, grease, petroleum jelly or oil-based cleaning agents anywhere near oxygen fittings. Wash the humidifier bottle with clean water, refill with distilled or clean drinking water, and replace nasal cannula and mask when visibly soiled or as hygiene guidance directs.

Inspection

Check the pressure gauge daily during active use. Inspect tubing for cracks and kinks, and keep the valve area free of dust. If you hear hissing, notice a sudden pressure drop or smell anything unusual, close the valve and call for support.

Replacement and Servicing

Nasal cannula, mask, tubing and humidifier bottle are consumables — replace them periodically. Replace a regulator showing an erratic gauge, a stiff flow knob or a persistent leak rather than attempting a home repair. Never attempt to refill, repair or modify a high-pressure cylinder or valve yourself; all refilling must go through the supplier.

Maintenance Tips Checklist

1. Read the gauge before every use, not only when flow feels weak.
2. Close the cylinder valve fully when not in use.
3. Keep the cylinder upright and secured at all times.
4. Use the trolley for indoor movement instead of dragging the cylinder.
5. Never lift or move a cylinder by its valve or regulator.
6. Keep the valve outlet free of dust before fitting the regulator.
7. Use only a regulator designed for medical oxygen cylinders.
8. Change humidifier water daily during continuous therapy.
9. Never let the humidifier bottle run dry.
10. Keep tubing untangled and free of kinks that restrict flow.
11. Schedule refills before the gauge reaches the red zone.
12. Log refill dates so you can predict consumption accurately.
13. Keep spare cannula and tubing in the house.
14. Have leaks, stiff valves and gauge faults checked by trained personnel only.
15. Return rental equipment on time and in the condition received to protect your deposit.

Safety Instructions

Fire and Combustion Safety

Medical oxygen strongly supports combustion. A small flame in an oxygen-enriched room can escalate very quickly.

1. Do not smoke, and do not allow anyone to smoke, in the room where oxygen is in use.
2. Keep the cylinder well away from gas stoves, chulhas, candles, incense, mosquito coils and open flames.
3. Keep it away from heaters, direct sunlight and any high-temperature source.
4. Never apply oil, grease or petroleum-based products to the cylinder, valve, regulator or your hands while handling fittings.
5. Avoid aerosol sprays and alcohol-based sanitiser near the oxygen outlet.
6. Keep oxygen tubing clear of heat sources and electrical appliances.

Handling and Transport Safety

7. Keep the cylinder upright and secured so it cannot fall or roll.
8. Do not drop, throw or strike the cylinder — at 16 kg and 2,000 PSI, impact damage is serious.
9. Open and close the valve slowly, and never force it.
10. Keep the valve protected when the cylinder is not in use.
11. Do not modify, repair or tamper with the cylinder or valve.
12. Never attempt to refill the cylinder yourself.

Clinical Use Safety

13. Use only the flow rate prescribed by the patient’s healthcare professional.
14. Never use the cylinder without a compatible regulator or flow meter.
15. Keep the cylinder and accessories out of reach of children, and ensure the room is adequately ventilated.
16. Stop use and seek medical help immediately if breathing worsens, or if confusion, blue lips or unusual drowsiness appear.

Warning: These are general safety guidelines and do not replace medical advice, the manufacturer’s manual, or instructions from the patient’s treating physician.

What is Linde oxygen cylinder rent in Dhaka?

It is a rental service giving you access to a genuine Linde (BOC) medical oxygen cylinder for a fixed period instead of buying one. Medical Product BD currently offers ৳500 daily, ৳3,000 for 7 days, ৳3,500 for 10 days, ৳4,000 for 15 days and ৳5,000 for 30 days, with free home delivery inside Dhaka.

What is BOC?

BOC is a medical and industrial gas brand associated with the Linde group in various markets. In Bangladesh, Linde and BOC cylinders are marketed together as premium medical oxygen cylinders.

What are the Linde cylinder specifications?

Current Bangladesh listings specify approximately 1.4 cubic metre capacity, around 2,000 PSI working pressure, about 16 kg weight, roughly 3 feet height and oxygen purity commonly stated at 99% or higher.

Is Linde better than a China or Islam oxygen cylinder?

Linde is positioned as premium, but “better” depends on the patient’s needs, cylinder condition, safety, availability, refill support and budget. Medical oxygen from a properly certified China or Islam cylinder serves the same clinical purpose. The premium buys brand documentation and build, not different gas.

Can I rent a Linde cylinder for just one day?

Yes. Daily rental is currently ৳500, which suits short-notice emergency backup and single-day transfers.

What are the weekly and monthly rates?

Currently ৳3,000 for 7 days, ৳3,500 for 10 days, ৳4,000 for 15 days and ৳5,000 for 30 days. A refundable security deposit may apply.

What is the Linde oxygen cylinder refill price?

Medical Product BD currently charges ৳900 for Linde refill with home delivery in Dhaka, compared with ৳800 for standard and portable cylinder refills.

Does a Linde oxygen cylinder need recharging?

No. It has no battery and uses no electricity. When the stored oxygen is consumed, the cylinder is refilled with medical oxygen or exchanged for a filled one.

How long does a Linde cylinder last on one fill?

Current Bangladesh listings estimate roughly 10–12 hours at 2 LPM for a 1.4 CBM cylinder. Actual duration depends on filled pressure and prescribed flow rate, so keep backup oxygen for any patient on continuous therapy.

Does the rental include a regulator?

The complete setup can include a regulator or flow meter along with a humidifier bottle, nasal cannula, mask and trolley, depending on the package. Confirm the exact contents before booking.

Can I use a Linde cylinder at home?

Yes. Medical oxygen cylinders are widely used for prescribed home oxygen therapy, under the flow rate set by the patient’s doctor.

Can I set the oxygen flow myself?

No. Use only the flow rate prescribed by a qualified healthcare professional. Adjusting it without medical advice can be harmful.

Do you deliver to my area in Dhaka?

We offer free home delivery inside Dhaka city with delivery and setup generally targeted within about one hour. Coverage and timing vary with traffic, weather and stock, so confirm your location on the phone before ordering.

ঢাকায় লিন্ডে অক্সিজেন সিলিন্ডার ভাড়া কত টাকা?

মেডিকেল প্রোডাক্ট বিডিতে বর্তমানে লিন্ডে (BOC) সিলিন্ডারের ভাড়া দৈনিক ৫০০ টাকা, ৭ দিনের জন্য ৩,০০০ টাকা, ১০ দিনের জন্য ৩,৫০০ টাকা, ১৫ দিনের জন্য ৪,০০০ টাকা এবং ৩০ দিনের জন্য ৫,০০০ টাকা। সঙ্গে ফেরতযোগ্য জামানত লাগতে পারে। আজকের নিশ্চিত দাম জানতে ০১৮১১১২২৬৯৮ নম্বরে কল করুন।

লিন্ডে সিলিন্ডারের ভাড়া বেশি কেন?

লিন্ডে একটি আন্তর্জাতিক প্রিমিয়াম মেডিকেল গ্যাস ব্র্যান্ড। ব্র্যান্ড, সিলিন্ডারের মান, ডকুমেন্টেশন এবং রিফিল সেবার কারণে দাম কিছুটা বেশি হয়। তবে মনে রাখবেন, সিলিন্ডারের ভেতরের অক্সিজেন চিকিৎসাগতভাবে আলাদা নয় — সঠিকভাবে সার্টিফাইড চায়না বা ইসলাম সিলিন্ডারও একই কাজ করে।

লিন্ডে অক্সিজেন সিলিন্ডার রিফিল খরচ কত?

মেডিকেল প্রোডাক্ট বিডিতে লিন্ডে সিলিন্ডার রিফিলের দাম বর্তমানে ৯০০ টাকা, ঢাকায় হোম ডেলিভারিসহ। সাধারণ বা পোর্টেবল সিলিন্ডার রিফিল ৮০০ টাকা।

একটি লিন্ডে সিলিন্ডার কতক্ষণ চলে?

১.৪ কিউবিক মিটার ক্ষমতার সিলিন্ডার ২ লিটার প্রতি মিনিট ফ্লোতে আনুমানিক ১০–১২ ঘণ্টা চলতে পারে বলে বর্তমান তালিকায় উল্লেখ আছে। এটি আনুমানিক হিসাব — ফ্লো বাড়লে সময় কমে যায়, তাই সবসময় ব্যাকআপ অক্সিজেন রাখুন।

জরুরি প্রয়োজনে কি বাসায় ডেলিভারি পাওয়া যাবে?

হ্যাঁ। ঢাকা শহরের ভিতরে আমরা ফ্রি হোম ডেলিভারি ও সেটআপ দিয়ে থাকি, সাধারণত প্রায় এক ঘণ্টার মধ্যে পৌঁছানোর লক্ষ্য রাখি। যানজট, আবহাওয়া ও স্টক অনুযায়ী সময় পরিবর্তিত হতে পারে। রোগীর শ্বাসকষ্ট তীব্র হলে আগে জরুরি চিকিৎসা সেবা নিন।

Book Your Linde Oxygen Cylinder Rent Today

Contact Medical Product BD

Need Linde oxygen cylinder rent in Dhaka right now? Do not wait until the gauge hits empty. Our team can confirm stock, quote the exact package and dispatch a filled Linde cylinder with a fitted regulator to your address.

📞 Call now: 01811122698 💬 WhatsApp: 01811122698 ✉️ Email: [email protected] 📍 Block A, Road 5, House 12, Mirpur 2, Dhaka 1216

What You Get When You Book

• Fast delivery — free home delivery inside Dhaka, setup generally targeted within about one hour
• Product availability — Linde, Islam, China and portable cylinders, plus refill and exchange service
• Warranty — rental and service terms explained clearly before handover
• Customer support — phone guidance for setup, refills and troubleshooting

Call or WhatsApp 01811122698 now to confirm today’s Linde (BOC) cylinder stock, rental package, refill price and delivery availability in Dhaka.