Frequently Asked Questions and Installation Instructions

Q: Why is the Purrified Air filter designed to be on all the time?

A: Any time there is cat waste in the litter box, odor is being generated.

Q: Can I use the filter for other uses?

A: Certainly. The product is designed to eliminate all Volatile Organic Compounds (VOCs) that pass through it. A basic definition of VOCs is things that smell. Any household odors from cooking, bathrooms, garbage, strong cleaning chemicals, smoke, and fire places will be greatly reduced by placing the filter in the vicinity. Our new combination wall-mount bracket and table-top cradle make this easy and effective. 

Q: Does using the Purrified Air filter mean I don't have to clean my litter box as often?

A: We won't tell if you don't.

Q: What are the dimensions of the filter?

A: It measures 9-3/8" x 9-3/8" x 4-1/4" tall. When placing under a table, counter, or other furniture, you must leave a minimum of one inch above the filter open for air to move out of the fan.

Q: Why is this filter heavier than other filters?

A: An activated carbon-based air filter's immediate and long term effectiveness is directly related to the amount of filter media it contains along with the amount of air which is forced through the media. This unit has more than two pounds of media, giving it the ability to destroy strong odor for several months. This is 30 times the odor-destroying power of other products on the market.

Q: How do I know when it is time to reorder a media cartridge?

A: Depending on how heavily the litter box is used, cartridges are designed to last 4-7 months. You can let your nose be your guide. Or perhaps a visitor to your home may be a better judge as it is easy to become used to odors in one's own home.

Q: After I installed my Purrified Air filter, I noticed there are gaps between the filter and the top of my litter box. Does this mean odor is escaping the filter?

A: No. The fan system is designed to pull in all air from the area of the litter box.

Q: I love my Purrified Air filter and I want to get a second one for my other litter box. Is there a discount for buying more than one?

A: Yes. If you buy any additional filters within 60 days of your original purchase, you will receive a discount of from 15 to 21 percent, depending on quantity, for additional units.

Installation Instructions Video (Written instructions below)

Thank you for purchasing a Purrified Air litter box odor killer. Whether you keep your cat's litter box at an obsessive-compulsive level of pristine purity at all times, or several degrees less than that, any problem you have in your home with litter box odor will be eliminated with this product. Purrified Air is designed to be attached to the top of covered-style litter boxes, over the existing vents. Great care has been taken to assure that our attachment system is adaptable to the vast majority of commonly-available covered litter boxes.


1. Remove and dispose of any existing filter pad in the litter box vents. An internal prefilter pad in our unit will trap dust your cat may kick up before the air enters the purification media.

2. Clean the top of the litter box cover before applying the hook and loop pads with a strong cleaner such as rubbing alcohol, ammonia-based window cleaner, ammonia, or Formula 409 to ensure good adhesion.

3. Remove the protective cover on the hook and loop pads, exposing the adhesive.

4. Press the unit down firmly, centered over the top vents of the litter box. Don't be concerned if some of the litter box vents remain uncovered. The fan is strong enough to pull in all air from the litter box. Try not to pull up on the hook and loop pads for 24 hours as the adhesive takes that time to achieve maximum strength.

5. Remove the filter media cartridge from its airtight wrapping to activate filter media. Make sure the side with the prefilter pad is facing down. Place in the bottom of the unit. 

6. Use the two supplied thumb screws to secure the top to the bottom. Turn until snug to eliminate air gaps between the two pieces.

7. If placing under furniture, make sure there is at least 1.5 inches of clearance above the filter for proper air flow.

8. Plug in. Within an hour, you should notice a large improvement. The unit is designed for continuous use. To be effective, it should be left on any time there may be waste in the litter box.

The filter draws about 3 watts. The cost to operate is minimal. The fan is rated for a minimum of 50,000 hours continuous use, or 5.7 years. The included cartridge is designed to last four to six months, depending on load. New cartridges are available from our website, or your dealer. By enrolling in our automatic refill program you will receive a ten percent discount. You have the option of deciding any number of months from one to twelve you would like a new cartridge delivered to you.

If you are having difficulty getting a good placement on your litter box, we might be able to help. Email us at with a description and a photograph of what you are up against.

Wall-mount bracket attachment

If attaching to a sheet-rock wall, use the supplied screws and anchors. It is best to set with a level. If you don't have a level, measuring off the floor the same distance to both the right and left sides of the bracket should get you pretty close.

Spent Cartridge Disposal

The contents of the cartridge are mostly organic. To dispose of an expired cartridge, simply cut it open and place the materials in your garden, fire pit, yard waste bin, or garbage can. The cartridge shell is a recycled PVC-based plastic. Contact your recycler to see if it will take the item.


The Purrified Air litter box odor killer is warranted for one year from date of purchase to be free from manufacturer defects. Liability shall be limited to repair or replacement of defective parts at the manufacturer's discretion. This warranty does not cover products which become defective through neglect or misuse.