What is the best way to clean the shell?
PHILTER team
The best way is with warm water and a little bit of dish soap.

Free shipping on the device and every refill. Then $41.99 per 2-pack every 2 months. Save 10% on refills.
$37.99 today, then $41.99 every 2 months for refills after a 1-month trial. Auto-renews until you cancel in your account, at shopphilter.com/subscription, or in PayPal. Full terms
The 30-Day Clean Air Guarantee
Try PHREND and if you don't love your clean air, tell us within 30 days and we'll send you a full refund. How it works
PHREND ships with a cartridge good for up to 500 exhales. That is about seven cents each time you would have gone outside, cracked a window, or just held it in.
Cheaper filters exist. Most are one sealed body you throw in the bin when it clogs. PHREND is a silicone sleeve you keep and a cartridge you swap in under a minute, which makes this the last device you buy. The cartridge composts.
Prefect for my desk
Love it
Works!
Discretion With Every Exhale
Introducing the PHREND! The newest addition to the PHILTER Phamily and our 1st product featuring a biodegradable filter.
Made of plant-based polymer, this filter will decompose in less than 3 years compared to nearly a thousand for regular plastic!
The PHREND is made for discerning users! Built for heavy exhales! A newly designed mouthpiece allows for a quicker, more efficient exhale and the increased capacity means you can get up to 500 exhales per filter – that’s 3x the capacity of the POCKET.
It was also made to protect Mother Earth and give back to nature. Each PHREND product includes a packaging sleeve made of biodegradable, eco-friendly seed paper. When the paper is planted, the seeds grow into wildflowers and the paper composts away.
Phrend-ly to you, those around you and Mother Earth!
Common questions
Shipping & Returns
ENGINEERED TO FIT YOUR LIFE
Handheld peace of mind, with clinical-grade filtering performance. A reusable sploof that filters your exhale instead of masking it.

Nothing changes about your routine. PHREND works around your lifestyle.
Put PHREND to your lips and exhale directly through it. The Zero-5™ filter traps particulates and odor before they ever hit the air.
What comes out the other side is clean, filtered air. No visible cloud, no lingering odor. Just discretion.
ZERO-5™ TECHNOLOGY

Proprietary airflow reduces back pressure, letting you exhale naturally without the "blocked straw" resistance of most filters.
Medical-grade HEPA filtration layers trap and remove toxic particulates including carcinogens, viruses, and bacteria.
Specialized media scrubs Volatile Organic Compounds (VOCs) to eliminate lingering odors and airborne irritants.
The result? A completely invisible, odorless output that respects the air you share with friends, family, and pets.
Five stages of microfiltration sealed in one pocket-sized shell. Nothing in the air but the moment.





Lab-tested filtration efficiency. No false claims, just results.
Captures particles down to 0.3 microns. That's 300x smaller than a hair.
No visible exhale. No lingering smell. No awkward conversations.
Third-party verified
Hundreds of verified customers
Proprietary Zero-5™
Honest claims only
Try PHREND and if you don't love your clean air, tell us within 30 days and we'll send you a full refund.
One guarantee per customer. No return shipping required on a used cartridge. Sealed, unused products follow the standard 30-day return policy.
Each PHREND filter is good for up to 500 exhales. For most people that is several weeks of regular sessions. The device itself is reusable; you only swap the filter.
No. The aerodynamic impactor keeps back-pressure minimal, so exhaling through PHREND feels close to a normal exhale. You do not need to force it.
Yes. PHREND treats smoke and vapor the same way: exhale through the mouthpiece and the filter captures particulate and odor before it reaches the room.
Use the whole first filter, then decide. If it did not do what we said, tell us within 30 days of delivery and we refund it, used. That is the 30-Day Clean Air Guarantee.
Independent lab testing measured 99.75% particulate elimination down to 0.3 microns. The carbon core captures the odor compounds, so what leaves the device is a clean, odorless exhale.
Open the device, drop in a new filter, close it. Refill 2-packs fit every PHREND color. The spent filter core is biodegradable and goes in household waste.
3 answered questions from the PHILTER team
What is the best way to clean the shell?
PHILTER team
The best way is with warm water and a little bit of dish soap.
When will it be available again? Is there a waiting list?
PHILTER team
They are back in stock now!!
When will these be back in stock
PHILTER team
They are back in stock now!!
Reviews
100 verified purchase reviews
Reviews come from verified purchases. After your order is delivered we email you a review link.
Bought one? Review it from your accountPrefect for my desk
I love keeping my phrend on my desk. It gives me the power to be discreet without feeling like a distraction.
Jake T.
Love it
Works so well. Able to clear the smoke out
Mary W.
Works!
You can literally use this in public restrooms or indoors...almost zero smoke so long as you blow right. Fits in purse. Gamechanger.
Steph B.
All reviews are from verified purchases and moderated before publication. Some reviews may be collected in exchange for a discount, regardless of rating.