Frequently Asked Questions

Find quick answers about Our pet oxygen concentrators, pet oxygen masks, oxygen chambers, bundle setup, shipping, and product support.

Choosing the Right Product

Which pet oxygen concentrator is right for my pet?

VL-1 and VL-2 are portable options designed for mask use. VH-3 and Serene 5 are home oxygen concentrators that can be paired with pet oxygen chambers for a calmer at-home setup.

What is the difference between VL-1 and VL-2?

VL-1 is a lightweight pulse flow portable oxygen concentrator. VL-2 is a continuous flow portable oxygen concentrator, designed for steady oxygen support during home use, travel, or short sessions.

What is the difference between VH-3 and Serene 5?

VH-3 offers adjustable 1–7L flow for home oxygen care. Serene 5 is a 5L home oxygen concentrator designed for stable high-purity oxygen output and chamber-compatible use.

Can VL-1 or VL-2 connect to an oxygen chamber?

VL-1 and VL-2 mask bundles are designed for pet oxygen mask use. For oxygen chamber care, choose a chamber-compatible home bundle such as VH-3 or Serene 5.

Mask & Chamber Size Guide

How do I choose between S and M oxygen masks?

Choose S for smaller pets and M for pets with wider or longer snouts. When unsure, size up for a more comfortable fit.

What are the oxygen mask sizes?

S Mask measures 87 × 30 mm and is best for cats and small dogs. M Mask measures 110 × 42 mm and is best for larger small dogs and medium dogs.

How do I choose the right oxygen chamber size?

Choose the chamber size based on your pet’s resting space. The chamber should allow your pet to lie down comfortably without feeling crowded.

What are the chamber size options?

56L measures 51 × 36 × 30 cm, 80L measures 60 × 42 × 34.5 cm, and 100L measures 60 × 40 × 46 cm.

Is the 100L chamber suitable for large dogs?

The 100L chamber is best for cats, small dogs, and small-to-medium pets. It is not recommended for large dogs. Please check your pet’s resting size before ordering.

Setup & Use

How does the oxygen chamber setup work?

Connect the oxygen concentrator to the chamber with oxygen tubing, place your pet comfortably inside, and keep them supervised during use.

Can my pet stay inside the oxygen chamber alone?

We recommend staying nearby and monitoring your pet during use. Always follow your veterinarian’s guidance for oxygen care.

How long can each session last?

Session length depends on your pet’s needs and your veterinarian’s recommendation. For home oxygen care, always follow professional guidance.

How should I clean the oxygen mask or chamber?

Wipe the mask or chamber with a soft damp cloth and let it dry fully before storage. Avoid harsh chemicals unless recommended in the user manual.

Shipping

How long will the product be shipped after purchase and the shipping time?

The shipment will be processed within approximately 2-3 business days after your purchase (except weekends and holidays).

After the order is shipped, the delivery time of the oxygen generator products is generally 5-7 working days, and the transportation time of the machine parts generally takes 10-20 working days.

Where does the product ship from?

We have two warehouses one is in California and New Jersey.

We can do 3-5 days fast delivery all around the United States

What is Expedited shipping?

Expedited shipping is one of our delivery services. It is the fastest way we can provide it, usually, you can get it within 5 days or less.

Why it charged me shipping fee?

Currently, we offer free shipping for orders over $69 in the United States. Once you have been charged the shipping fee if you are from other countries or your order amount is below $69.

How does the shipping caculate?

Varon does have free shipping for all devices in the United States and charges $19.9 for accessories shipping. 

Other areas can check on our shipping policy 

Service & Policy

Where can you find return and exchange policies?

Return and exchange policies can be found here: Return and Exchange Policies.

What should I do if I want to modify the order information after placing an order?

Please check the status of the order with customer service, and confirm that the order is not shipped, you can modify the order number, address, email, and other information;

If the order has been shipped, the order information cannot be modified

Can the order be cancelled due to special personal reasons after purchase?

Please contact customer service via email to verify the current status of the order. If the status of the order is not shipped, you can apply for cancellation of the order due to personal special reasons;

If the order has been shipped, it is generally not supported to cancel the order. For details, please refer to the return policy module : Cancel the order

Received damaged products or missing parts?

After receiving the product, please check the product packaging and product and its accessories. If you find any damage or missing accessories, please contact us in time within 48 hours of signing the receipt

  • If the product is found to be damaged, please send the product packaging diagram + damaged part diagram to our mailbox
  • If the parts are missing, please send the product packaging drawing + products and accessories, our staff will verify after receiving your email information
The product has quality problems?

The products sold on the website have undergone multiple quality inspections, and within 30 days of signing for the product, if you find that there is a problem with the product quality after receiving it or using it, please contact us by email for processing

How do I find the manual for my device?

We have manuals for each device included in the package. We also have the E-Manual available on our website. You can find it blow the description of each model or click HERE

How to find the right accessories for my device?

We have a collection of accessories for our devices. You can look up the right accessories that match your device. Also if you have any questions about accessories you can contact us to get access.

Can I cancel my order if I change the mind?

Yes! You can cancel your order anytime just before the packages are shipped. 

Contact our customer service and we will cancel and refund your order.

If the package has been shipped, don't worry. You can also contact our customer service to return back the package and you will get your refund as soon as we receive the returning products.

Does varon oxygen concentrator store has warranty?

Yes! We do have one year warranty on our oxygen concentrators, any details please check here:Warranty policy

Still Have Questions?

Need help choosing the right oxygen concentrator, mask size, chamber size, or bundle setup? Send us a message and our support team will be happy to help.