Is Your Pet Oxygen Chamber Safe?

Is your pet oxygen chamber safe?

Hey there, it’s Blake from Pawprint Oxygen! Recently, I’ve been getting a lot of questions from pet parents about oxygen chambers made by other companies that they have found on Amazon.

After looking at the product listings, I became concerned about the lack of safety features and other critical problems that could make these products dangerous to use with your pet. That prompted us to test each of these oxygen chambers to see if they are safe, and today I wanted to share those results with you.

For full disclosure, we sell the PureVent Pet Oxygen Chamber. You can find it on Amazon or directly through us. This oxygen chamber is designed to provide a safe environment for oxygen therapy, managing things like oxygen purity, carbon dioxide level, heat, and humidity to make sure you are helping your pet, not harming them.

First, let’s look at some of the oxygen chambers we tested.

There are a lot of different product listings for oxygen chambers, but they are mostly variations of the same design: a cheap fabric box with clear vinyl windows. The product listings for these oxygen chambers often have computer generated images of dogs and cats as opposed to real pictures of pets using the oxygen chamber.

First Test: Oxygen Level in the Oxygen Chamber

It’s important that your oxygen chamber allows you to set the oxygen level depending on your pets needs. If the oxygen level in the chamber is too high, your pet can experience oxygen toxicity, which can result in injury or death. If the oxygen level is too low, your pet might not be getting the therapy they need.

The oxygen chambers we tested did not have any method for setting the oxygen level in the chamber. Depending on the oxygen source and flow rate that you are using, you could be providing between 21% oxygen (room air) and 99% oxygen, which could result in oxygen toxicity. Many of the images in the product listings show a non-medical oxygen concentrator being used with the oxygen chamber, which cannot provide enough oxygen to properly fill the chamber to an appropriate oxygen level. For this reason, the pictures in the product listing are misleading.

The PureVent Pet Oxygen Chamber Uses a Venturi System to Set the Oxygen Level in the Chamber

The PureVent Pet Oxygen Chamber comes with multi-colored fittings that allow you to select the oxygen level that is recommended by your veterinarian. The Venturi System also has the important benefit of adding more airflow to the system, which is critical to displacing the toxic carbon dioxide that your pet is exhaling in the oxygen chamber. We’ll talk about that next.

How the Venturi Sets the Oxygen Level

High purity oxygen flows in from the source (i.e. a medical-grade oxygen concentrator). As it flows by the openings in the Venturi adapter, a vacuum is created, which draws in room air to mix with the high purity oxygen from the source. This resulting oxygen mixture will vary in oxygen purity depending on the Venturi adapter you select. The example below shows the Red (40%) Venturi.

Second Test: Carbon Dioxide Level in the Chamber

One of the most important elements of your oxygen cage setup is the displacement of carbon dioxide. Your pet is exhaling carbon dioxide with each breath, and without proper airflow and ventilation, carbon dioxide can build up and become unsafe for your pet.

The oxygen chambers we tested did not have any safety measures for mitigating or displacing carbon dioxide, which can make them very dangerous for your pet. The oxygen port on these chambers only accepts standard oxygen tubing, rather than the Venturi System. That means that the overall air exchange is very slow.

In our tests, carbon dioxide levels in these chambers reached unsafe levels within 5 minutes of use. Don’t worry, we didn’t put pets at risk! We used a canine lung model that has been validated against real pets, and it can be used to simulate the air exchange in a pet’s lungs and in an oxygen chamber. The bottom line is that these chambers were not safe to use because of the dangerous buildup of carbon dioxide.

How does the PureVent Pet Oxygen Chamber solve this problem?

The PureVent Pet Oxygen Chamber utilizes the Venturi System to flush carbon dioxide out of the chamber. The Venturi pulls in room air and mixes it with the oxygen from your oxygen concentrator, dramatically increasing the overall air exchange inside the chamber.

Additionally, the PureVent Pet Oxygen Chamber has two strategically placed Hypalon vents to allow excess CO2, heat and humidity to escape. Don't worry, since you are constantly replenishing the oxygen, the vents only affect the oxygen level by less than 1%.

Other Considerations on Oxygen Chambers: Build Quality, Instructions, Customer Support

Choosing the Oxygen Source for Your Oxygen Chamber

This last point is very important. In a previous blog post, we discussed the differences between medical-grade oxygen concentrators and non-medical units that you might find on Amazon. In short, non-medical units cannot provide enough oxygen to supply an oxygen chamber. Some non-medical units are incorrectly marketed to achieve the appropriate flow rates, but in the fine print, it’s clear that the oxygen purity decreases drastically at higher flow rates, making it no better than room air.

The oxygen chambers we tested have product listings which often feature non-medical oxygen concentrators being used with their chambers. We cannot stress enough how dangerous these items are for a pet.

Our tests show that you need at least 5 liters per minute of >90% oxygen used with the Venturi System to achieve acceptable levels of oxygen and carbon dioxide in an oxygen chamber that is equivalent in size to our standard sized PureVent Pet Oxygen Chamber.

You need at least 10 liters per minute of >90% oxygen used with the Venturi System to achieve acceptable levels of oxygen and carbon dioxide in a chamber that is equivalent in size to our Large Buster ICU Oxygen Cage.

When in doubt, ask your veterinarian about oxygen chambers.

Your veterinarian is the best person to advise you on these topics. If they aren’t familiar with home oxygen therapy, it may help to ask them some of the questions posed in this article, such as:

In general, we are concerned with the efficacy of the products we tested and with the marketing and images that are used to promote these products. We support new and innovative oxygen chambers that have pets’ safety in mind, but that doesn’t seem to be the case with these non-medical grade items sold through retailers like Amazon.