PHILTER Labs
PHILTER Labs is a privately held Encinitas, California-based consumer products company that designs and sells handheld personal air filtration devices (PHREND, POCKET) using patented Zero-5™ 5-stage microfiltration to capture exhaled smoke, vapor, and odor for legal-age adult smokers and vapers via DTC e-commerce and wholesale channels.
- Company typePrivate
- Founded2019
- HeadquartersEncinitas, United States
- Headcount1–10
- GTM typeB2C
- OfferingHardware or Manufacturing
What PHILTER Labs does
PHILTER Labs (legal entity: Philter Labs, Inc.) is a privately held consumer products company headquartered in Encinitas, California (San Diego area), founded in 2019 with 1-10 employees. The company designs, manufactures, and sells handheld personal air filtration devices — primarily the PHREND and POCKET product lines — that capture exhaled smoke, vapor, and odor at the source. Its core technology is the patented Zero-5™ 5-stage microfiltration system, which combines HEPA-grade filter media, a proprietary low-back-pressure airflow system, and VOC-scrubbing layers to remove 99.75% of particulates down to 0.3 microns in a pocket-sized, battery-free form factor. Filter cartridges are biodegradable and rated for 250-500 exhales depending on the device.
The company operates a product-led go-to-market centered on direct-to-consumer e-commerce through a Shopify storefront (philterlabs.com), supported by email/SMS drop-list marketing and earned media coverage in outlets including Mind Body Green, Heavy, The Bluntness, Upworthy, and LA Weekly. Revenue is generated through one-time hardware sales ($37.99 for PHREND, TBD for POCKET), recurring filter refill subscriptions via Autoship (10% discount), bundled offerings ($79.99 Best PHREND Bundle), and a wholesale partner program targeting retail stores, convenience stores, and online resellers with drop-ship fulfillment and a $500 minimum initial order. Target customers are legal-age adult smokers and vapers (21+) who seek to be considerate of family, friends, pets, and shared social spaces.
PHILTER Labs has raised funding across multiple rounds since inception — including a 2019 round led by Bravos Capital and Explorer Equity Group (~$3M) and a 2023 Series A targeting AUD 4M led by Btomorrow Ventures with participation from Atayf Investments Pty Ltd. The company has registered trademarks for Zero-5™, PHILTER, PHREND, and POCKET. Use of proceeds for the Series A indicates R&D investment into heat-not-burn device technology, suggesting a future expansion of the product platform beyond exhale-capture filtration. Leadership is anchored by CEO Christos Nicolaidis. The company ships within the United States only and operates with a small core team supplemented by outsourced fulfillment and marketing automation partners.
PHILTER Labs firmographics
Firmographics- Name
- PHILTER Labs
- Legal name
- Philter Labs, Inc.
- Website
- https://philterlabs.com
- Company type
- Private
- Founded year
- 2019
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- PHILTER Labs is a privately held Encinitas, California-based consumer products company that designs and sells handheld personal air filtration devices (PHREND, POCKET) using patented Zero-5™ 5-stage microfiltration to capture exhaled smoke, vapor, and odor for legal-age adult smokers and vapers via DTC e-commerce and wholesale channels.
- Ownership category
- akta.pro rank
PHILTER Labs industry classification
Industry- Product category
- Personal Air Filtration Devices
- NAICS
- Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)
- SIC
- Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)
- akta.pro primary industry
- Dust Collection & Air Filtration Equipment (Industrial) (IMAHALAF)
Keywords
Where PHILTER Labs is headquartered
LocationHeadquarters
- HQ city
- Encinitas
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
PHILTER Labs business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Operations, Technology or R&D, Marketing or Sales, Personnel
Revenue model
- Hardware Device Sales: One-time sales of reusable PHREND and POCKET devices. Devices are durable and long-lasting, sold directly to consumers via e-commerce and through wholesale partners.
- Filter Refill Subscriptions: Recurring revenue from replaceable filter cartridges. PHREND filters last up to 500 exhales, POCKET filters up to 250 exhales. Autoship subscription model offers 10% discount with deliveries every 2, 4, or 8 weeks.
- Wholesale/B2B Sales: Bulk sales to retail partners, distributors, and online retailers through wholesale program. Industry-leading wholesale pricing with volume discounts. Drop-ship fulfillment model.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | PHREND Device - $37.99 |
| Unit Pricing | Pay-as-you-go | PHREND 2-Pack Refills - $44.99 |
| Subscription | Monthly | PHREND Refill Autoship Subscription - $40.49 per delivery |
| One time/ perpetual license | Pay-as-you-go | Best PHREND Bundle - $79.99 |
| One time/ perpetual license | Pay-as-you-go | POCKET Device - Price TBD |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels6 records
PHILTER Labs product offering
Product offeringCore offering
PHILTER Labs designs and sells handheld, battery-free personal air filtration devices (PHREND and POCKET) that capture and neutralize exhaled smoke, vapor, odor, and particulates using its patented Zero-5 five-stage microfiltration system. The reusable devices use replaceable, biodegradable filter cartridges and are sold direct-to-consumer online and through wholesale retail partners.
Product overview
PHILTER Labs offers a focused portfolio of personal air filtration devices designed to eliminate secondhand smoke and odors. The core products are PHREND and POCKET, both handheld devices using the proprietary Zero-5™ 5-stage microfiltration system that captures 99.75% of particulates down to 0.3 microns. These battery-free, reusable devices filter exhaled air through replaceable biodegradable cartridges. The product line includes PHREND (up to 500 exhales, $37.99), POCKET (up to 250 exhales), PHREND 2-Pack Refills ($44.99), and the Best PHREND Bundle ($79.99 combining PHREND with refills). POCKET 2 is announced as upcoming. The company also offers wholesale partnership programs for retailers.
Differentiator
Problem solved
Functional benefit
Brands
- Zero-5™: Patented 5-stage microfiltration technology used in PHREND and POCKET devices that captures airborne particulates, odor, and toxins.
Products and services
- PHREND handheld personal air filtration device Reusable, battery-free handheld device for adult consumers who smoke or vape and want to capture smoke, vapor, odor, and particulates at the source, removing 99.75% of particulates down to 0.3 microns with a smooth, low-resistance exhale.
- POCKET handheld personal air filter Ultra-compact handheld personal air filter with the same Zero-5 microfiltration as PHREND, designed for adult smokers/vapers seeking a slimmer, more pocketable form factor with biodegradable components.
- PHREND 2-Pack Refills Two-pack of biodegradable replacement filter cartridges for the PHREND device, sold individually or via autoship subscription (10% off) for adult consumers who need ongoing filtration consumables.
- Best PHREND Bundle Starter bundle that combines a PHREND device with a 2-pack of biodegradable refills at a discounted price, targeting first-time adult consumers seeking a turnkey personal filtration setup.
Quantifiable outcome
- 99.75% particulate elimination down to 0.3 microns
- +3 more outcomes
Companies that use PHILTER Labs
Customer profileNamed customers4 records
Segments3 records
Ideal customer profiles2 records
PHILTER Labs technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
PHILTER Labs partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Shopify Inc.coreE-commerce platform provider hosting PHILTER's online storefront. Shopify provides the infrastructure for product listings, shopping cart, checkout, and order management. Terms of Service explicitly reference Shopify as the platform provider.
Scale indicators4 records
Recent moves6 records
Expansion highlights5 records
PHILTER Labs competitors and assessment
Company assessmentDirect peers
- AirPop: AirPop makes lightweight personal air filtration masks with replaceable filters and a smart accessory (the Halo sensor). Comparable to PHILTER on wearable personal filtration, replaceable filter consumables, and a design-forward D2C brand identity.
- Vogmask: Vogmask sells reusable, fashion-forward personal air filtration masks designed for everyday wear. Like PHILTER, it targets health- and lifestyle-conscious consumers with a personal, wearable filtration product, though Vogmask filters inhaled air rather than exhaled air.
- Cambridge Mask Co: Cambridge Mask Co offers reusable personal respirator-style masks using HEPA-grade filtration and activated carbon. It is a close comparable to PHILTER on consumer personal air filtration branding, subscription/consumable model, and direct-to-consumer e-commerce go-to-market.
Broad incumbents
- Razer Zephyr / Zephyr Pro: Razer's Zephyr is a wearable personal air purifier positioned as a lifestyle/gaming accessory. It is comparable to PHILTER as a consumer-grade personal air filtration device from an established hardware brand, but serves a different (gamer) audience.
- Molekule: Molekule sells premium room air purifiers using PECO filtration technology. Comparable to PHILTER on proprietary filtration IP marketed to a premium consumer wellness audience, though its form factor is stationary rather than personal.
- IQAir: IQAir is a leading premium room/portable air purifier maker with HEPA and HyperHEPA filtration. Comparable to PHILTER on air purification credibility and third-party-tested performance claims, but operates at a much larger scale in room rather than personal/wearable filtration.
- Dyson (Personal/Zone wearables): Dyson has explored wearable personal air purification (Dyson Zone). Dyson is comparable as a premium air-purification hardware maker with strong R&D and brand authority, validating the wearable personal filtration category even though its scale and product mix are far broader.
Regional players
- Airthereal: Airthereal sells a broad portfolio of consumer and small-commercial air purifiers, primarily via Amazon D2C. Comparable to PHILTER on consumer-focused air purification hardware sold through e-commerce, but with a broader product line and less brand differentiation.
Emerging players
- PAQO (personal air quality wearables): PAQO and similar emerging wearable air-quality brands sit adjacent to PHILTER in the personal air quality/wellness category, competing for the same conscientious-consumer mindshare with portable personal hardware.
- Atmos (Atmosk): Atmosk is an emerging brand offering wearable personal air filtration devices for active and outdoor use. Comparable to PHILTER as a smaller, design-led entrant in the personal wearable air filtration category.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
PHILTER Labs social profiles
Digital presencePHILTER Labs financial estimates
Financial estimateRevenue estimate
Valuation estimate
PHILTER Labs leadership team
Management profileNumber of profiles
Profiles1 record
PHILTER Labs funding detail
Funding detailFunding overview
Funding rounds5 records
Investors4 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
PHILTER Labs M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about PHILTER Labs
What does PHILTER Labs do?
PHILTER Labs designs and sells handheld, battery-free personal air filtration devices (PHREND and POCKET) that capture and neutralize exhaled smoke, vapor, odor, and particulates using its patented Zero-5 five-stage microfiltration system. The reusable devices use replaceable, biodegradable filter cartridges and are sold direct-to-consumer online and through wholesale retail partners.
Is PHILTER Labs a public or private company?
PHILTER Labs is a private company. It is classified as venture growth investor backed and is currently operating.
When was PHILTER Labs founded?
PHILTER Labs was founded in 2019. It employs 1 to 10 people.
Where is PHILTER Labs based?
PHILTER Labs is headquartered in Encinitas, United States, in the North America region.
How does PHILTER Labs make money?
Three revenue lines are on record. Hardware Device Sales are the primary driver. The others are filter Refill Subscriptions and wholesale/B2B Sales.
Who are PHILTER Labs's main competitors?
Direct peers on record are AirPop, Vogmask and Cambridge Mask Co. Broad incumbents are Razer Zephyr / Zephyr Pro, Molekule, IQAir and Dyson (Personal/Zone wearables). Airthereal is listed as a regional player. Emerging players are PAQO (personal air quality wearables) and Atmos (Atmosk).
Does PHILTER Labs have an API?
No public API is recorded for PHILTER Labs.
What industry is PHILTER Labs in?
PHILTER Labs's product category is Personal Air Filtration Devices. Its primary akta.pro industry code is IMAHALAF, Dust Collection & Air Filtration Equipment (Industrial). Its NAICS code is 333413 and its SIC code is 3564.