Home and care · The spec card

Puppy Kind Air Purifier: What I Found When I Checked the Size, Power, and Filter Layers

The whole purifier fits on one card, and every line on it is something I use at home.

By Theo Marsh, Senior writer · 7 min read · Published 24 September 2026 · Updated 26 September 2026

The Puppy Kind purifier on a pale floating shelf next to a coffee mug and a measuring tape, with a dachshund looking at it from the foreground. — About 3 x 3 x 5.9 inches: barely taller than the mug beside it.

Here's the whole Puppy Kind Pet Air Purifier on one card: 75 x 75 x 150 mm, which is 5.9 inches tall on a base just under 3 inches square, 5 V / 1 A power over USB-C, a box rating of up to 216 square feet, and a price of $49.85. Inside is a filter with three layers that each handle a different job, and when that filter is used up, the refill is sold by name on Puppy Kind's own site.

Mine sits on a shallow shelf in my reading nook. The day it arrived, I checked the label on the base against my order email, set it on the shelf, and wrote my care dates on the calendar. Every line on the card below is something I actually use.

Infographic spec card: 3 x 3 x 5.9 inches, 5 V / 1 A USB-C, three filter layers, up to 216 square feet, plus the care schedule. — The whole purifier on one card.

What are the Puppy Kind air purifier's specs?

Spec	Detail	What it means for you
Product	Pet Air Purifier	The name to match on your order and refills
Size	75 x 75 x 150 mm (about 3 x 3 x 5.9 in)	Fits a side table, nightstand, or shelf
Power	USB-C, 5 V / 1 A	Runs from a common USB power block
Filter	Pre-filter, True HEPA element, activated carbon	Covers bigger bits, fine particles, and odor-causing gases
In the box	Purifier, one filter, one USB cable (packing list)	Ready to set up on a table near power
Price	$49.85 for 1 pack on puppykind.org	What one purifier costs
Refill	Replacement HEPA Filter, sold singly at $8.95	Easy to reorder by name
Room	Up to 216 square feet for a standard-size living room (package)	Made for one room at a time
Care	Dust every two weeks; filter lasts two to four weeks with moderate use, every 5 to 10 days with heavy use	A short, steady routine

What I like about this card is that every line points to something you can do. The size line tells you where it goes, and the power line tells you what to plug it into. The filter line explains what it's for, and the refill line shows you where the next filter comes from.

What 3 x 3 x 5.9 inches looks like on your shelf

The first two numbers, 75 and 75, are the width and depth. They're equal, so the base is square, about 3 inches on each side. That's roughly the size of a coaster.

A hand holding a tape measure against the Puppy Kind purifier on a bookshelf next to a coffee mug. — Tape says just under 6 inches, like the spec card.

The last number is the height: 150 mm, or about 5.9 inches. So the purifier stands about twice as tall as it is wide, a little taller than a soda can.

My reading-nook shelf is only about 4 inches deep, and it holds the purifier with room to spare. I left a bit more than 6 inches of open height above it, so I can lift the unit and reach the filter in its base. The cord runs behind the bookcase to power.

A view from a reading chair with an open book on the lap, the Puppy Kind purifier on a shallow shelf and a senior greyhound asleep on a bed. — Reading-nook shelf, about 4 inches deep. Plenty.

The Puppy Kind purifier on a narrow bedroom shelf with a framed print while a senior greyhound sleeps on a bed below. — A 4-inch-deep shelf holds it with room to spare.

Almost every room already has a spot like that. The purifier takes about a coaster's worth of shelf, so I never had to clear out a corner and keep a path open around it the way you would for a floor model.

Inside the filter: three layers with three jobs

Fine-line plate illustration of the purifier from the side and top beside a mug, a ruler and a dachshund. — The whole purifier, measured against a mug and a ruler.

Pre-filter: the first catch, for lint and larger dust.
True HEPA element: made for fine airborne particles, like dander.
Activated carbon: used for odor-causing gases.

Each one takes a different kind of airborne mess, so together they cover a lot of ground for a room where a dog lives. The pre-filter also shields the finer layer from the bigger stuff, which helps the whole filter keep doing its job.

LOVE LOVE LOVE THIS product. ... Only thing that has EVER WORKED for my SENIOR DOGS 12 AND 13 ... you name it NOTHING has worked like this has.
Rene R., Puppy Kind customer

One filter comes in the box, and the Replacement HEPA Filter is the refill you buy later on. Knowing that up front made my first reorder easy to plan.

Matching your unit to the right refill

Reordering is where this card earned its keep for me. The name on my order and the name on the purifier's label both read Pet Air Purifier, and the refill listing names that same purifier. When the names match, you've got the right filter.

Put the care dates on your calendar the day the purifier arrives: a dusting every two weeks, and a new filter every two to four weeks with moderate use. For a dog room where it works hard daily, replace the filter every 5 to 10 days.

The numbers tell part of the story, and the company behind them tells the rest. Puppy Kind checks out well there: a well-known brand, thousands of reviews, and a support team that answers quickly through its Contact Us page, refund requests included.

To see the room number on the box in real life, read what 216 square feet looks like in an actual room.

If your label ever shows a different model name, send a photo through the Contact Us page and ask before you order. Otherwise, bookmark the refill page and keep this card handy, because everything the purifier will ever ask of you is on it, from the shelf it sits on to the filter you'll order next.

Questions readers ask

What are the Puppy Kind air purifier's dimensions?

75 x 75 x 150 mm, which is about 3 inches square at the base and 5.9 inches tall.

What filter does the Puppy Kind purifier use?

One filter with three layers: a pre-filter, a True HEPA element and activated carbon. The refill is the Replacement HEPA Filter on puppykind.org.

What comes in the box?

The purifier, one filter and one USB cable, per the packing list.

What are the Puppy Kind air purifier's specs?

The Pet Air Purifier measures 75 x 75 x 150 mm, roughly 3 x 3 x 5.9 inches, is powered over USB-C at 5 V / 1 A, and uses one filter with a pre-filter, True HEPA element and activated carbon. The package lists up to 216 square feet, and it sells for $49.85.

Is the Puppy Kind filter True HEPA?

Yes. The single filter combines a True HEPA element with a pre-filter on the outside and a layer of activated carbon, and it sits inside the purifier's base.

What model name should I match for the Puppy Kind purifier?

It's sold as the Pet Air Purifier. That name should appear on your order email, the label on the unit and the refill listing, which makes reordering the right filter simple.

Does the Puppy Kind purifier turn off on its own?

Yes. Puppy Kind's product page lists a 10-hour auto shut-off timer, one-touch start and a soft LED light with 7 colors, so you can leave it running through a work day without worrying about switching it off.