The Non-Financial Ledger: What the Price Tag Didn’t Cover

“Consumers are rightfully concerned about maintaining indoor spaces that are free of harmful pathogens and contaminants. A large portion of Defendant’s profits are attributable to its false HEPA filtration claims.”

Legal Receipts: What the Complaint Actually Says

The following are direct quotes from the class action complaint filed February 19, 2026 (Case 3:26-cv-01056-BAS-MMP). Nothing below is paraphrased or invented.

“Independent testing by Plaintiff’s counsel has shown that the filters used in the Air Purifiers and the replacement filters do not meet HEPA standards.”

• This is the core factual claim of the entire lawsuit. It means the allegation is grounded in actual laboratory data, not consumer complaint anecdotes or regulatory guesswork.
• The testing was performed by an ANAB/ANSI-certified American laboratory described as “often used by companies to validate their filters” and “an industry leader in the rigorous and accurate testing of HEPA filters.” The same lab companies hire to prove their filters work was the one that proved Alen’s doesn’t.
• The test used was IEST-RP-CC001.7, the U.S. protocol for HEPA verification. This is the governing standard, not an obscure or disputed methodology.

“The filter did not remove 99.9% of particles at 0.1 microns. In fact, they do not even qualify as HEPA-grade because it failed to remove 99.97% of particles at 0.3 microns.”

• This is the specific test result. The filter failed at 0.3 microns, the easier threshold. HEPA requires 99.97% efficiency there before a filter can even be evaluated at 0.1 microns.
• Alen’s advertising claimed 99.9% elimination at 0.1 microns. The filter couldn’t reach 99.97% at the less demanding 0.3-micron level. The gap between claim and reality spans both the threshold and the particle size.

“In reality, Defendant did not test or verify each production filter sold to Plaintiff and the Class for compliance with industry standards before advertising and selling the filters as ‘HEPA.’ Moreover, Plaintiff is informed and believes that Defendant did not conduct any industry standard testing that is required to make HEPA claims for the Products.”

• Under IEST-RP-CC001, each individual filter placed into commerce must be tested and verified. Design testing or prototype testing is not sufficient. The complaint alleges Alen skipped this requirement entirely.
• This is the distinction between a company that tested and failed and a company that never tested at all. The complaint alleges the latter, which, if proven, would show Alen had no basis for the HEPA claim at the moment it was printed on every product page and every box.

“Defendant’s misrepresentations occurred on the Products’ Amazon product pages, its own website, and on the product packaging identifying the filters as ‘HEPA,’ and were made continuously during at least 2022–2025.”

• The false claim was not a one-time error on a single listing. It ran across three distribution channels simultaneously: Amazon, Alen’s own website, and physical packaging, for at least three years.
• This matters legally because every customer who bought through any of these channels during this window is a potential class member. The complaint confirms Alen’s HEPA claims “were seen by all purchasers of the Air Purifiers and replacement filters.”

“Defendant sold its Products through Amazon.com, its own website, and retail stores. Defendant knew this, but continued hocking its wares, making a killing selling the Air Purifiers and replacement filters since the outset of the COVID-19 pandemic.”

• The complaint’s language here is deliberate: “making a killing” is not accidental. It places the financial exploitation of pandemic-era fear as the motivation for maintaining the false HEPA label across all channels.
• COVID-19 began in 2020. The complaint’s documented misconduct window starts in 2022 and runs through 2025. Alen had two full years of the pandemic to understand exactly how much consumers valued HEPA certification before being named in this suit.

“Defendant’s superior position in the market can be attributed to its false and misleading HEPA claims.”

• This allegation frames the HEPA fraud as an unfair competitive practice. Alen is described as “one of the nation’s leading air-purifier manufacturers,” and the complaint attributes its market leadership, at least in part, to false advertising.
• Honest competitors who paid for proper HEPA testing and delivered filters that actually met the standard were undercut by a company advertising the same standard without achieving it.

Societal Impact Mapping: Who Gets Hurt When HEPA Is a Lie

Public Health

HEPA filtration is not a consumer preference category. It is a public health tool. The complaint documents the specific health context in which Alen sold these products.

• The EPA estimated that 67 million tons of pollution entered the U.S. atmosphere in 2021 alone. Poor air quality causes an estimated 100,000 premature deaths in the United States each year. Every consumer who bought a fake HEPA unit was relying on it to address this documented, quantified threat.
• Exposure to air particulates has been linked to symptoms of depression, cognitive decline, and increased anxiety, per the complaint. Consumers who purchased these devices for mental health as well as physical health received no genuine HEPA protection on either front.
• Wildfire smoke since 2020 has exacerbated asthma and emphysema for millions of Americans. The CDC identifies HEPA filters as the most efficient tool for trapping exhaled particles. People with these conditions who used Alen’s product had a device running in the corner of their room providing less protection than the label promised.
• The COVID-19 pandemic drove the specific demand surge from which Alen profited most. The complaint directly states Alen made “a killing” selling these products “since the outset of the COVID-19 pandemic.” The same aerosol particles a genuine HEPA filter is designed to trap were the primary transmission vector of a virus that killed over a million Americans.
• The FTC has previously entered Consent Decrees with air purifier manufacturers for false efficacy claims, specifically identifying false HEPA representations as “an unfair and deceptive trade practice.” The complaint cites the precedent of In the Matter of Honeywell (FTC File No. 962-3154). Regulators have long recognized that this specific type of fraud causes measurable public health harm.
• Consumers “cannot conduct HEPA standard testing” themselves, per the complaint. This information asymmetry means buyers had no mechanism to discover the deception before purchasing. Every person who ran the device near a sick family member or during a wildfire event did so with no way of knowing the filter was non-compliant.

“HEPA filters are the most efficient filters on the market for trapping particles that people exhale when breathing, talking, singing, coughing, and sneezing.” — Centers for Disease Control and Prevention, cited in the complaint

Economic Inequality

Air purifier fraud hits hardest among the people who had the fewest options and spent the most proportionally to protect themselves.

• Plaintiff Clint Petty of San Diego paid $318.99 for the BreatheSmart 45i in November 2022 and $81.09 for a replacement filter in May 2024, spending $400.08 total on a product that never delivered HEPA-grade protection. For a household living on a median income, this is a meaningful expenditure, made in good faith based on fraudulent representations.
• The complaint confirms the HEPA label commands a price premium. Non-HEPA air purifiers sell at a discount compared to HEPA units. By falsely claiming HEPA certification, Alen extracted a premium price from every buyer while delivering a non-HEPA product. The complaint describes this as consumers paying “artificially inflated prices.”
• People in wildfire-affected regions and in densely populated cities with high pollution loads are disproportionately lower-income. They are more likely to rely on portable air purifiers rather than built-in home filtration. They are the population most harmed by a fake HEPA claim because they have the fewest alternatives.
• Replacement filters cost additional money on a recurring basis. The complaint specifically includes replacement filters as part of the fraudulent scheme. Every time a class member bought a new filter, trusting the same HEPA label, they paid the premium again. The financial harm compounds across the product lifecycle.
• The class action structure exists precisely because each individual claim, while real, is too small to pursue alone. The complaint acknowledges that “each individual member of the classes may lack the resources to undergo the burden and expense of individual prosecution.” The legal system’s remedy for fraud against low-dollar, high-volume consumers is a class action. Alen’s conduct was structured in a way that made individual accountability almost impossible without collective action.
• Honest air purifier manufacturers who invested in proper HEPA testing and passed were undercut by Alen’s ability to sell at the same HEPA-premium price point without incurring the cost of compliance. The market distortion penalizes ethical competitors and rewards fraud.

The Cost of a Life Metric: What the Math Looks Like

The air purifier market that Alen exploited is quantified in the complaint. Put these numbers next to what Americans paid with their health and their money.

How HEPA Certification Is Supposed to Work: The Process Alen Skipped

Under the governing U.S. industry standard IEST-RP-CC001, there is a defined process every filter must pass before it can be called HEPA. The complaint alleges Alen bypassed every critical step.

What Now: How to Push Back

The class action covers all U.S. purchasers of the Alen BreatheSmart 45i, BreatheSmart FLEX, and any substantially similar Alen air purifier using the same filter, purchased during the applicable statutory period. If you bought one of these products, your next steps are below.

• The lawsuit was filed by attorneys at Bursor & Fisher, P.A. (L. Timothy Fisher, Luke Sironski-White) and Sinderbrand Law Group, P.C. (Greg Sinderbrand) on behalf of plaintiff Clint Petty and all similarly situated purchasers nationwide. Contact information is publicly available through ClassAction.org, which hosts the filed complaint.
• The proposed nationwide class covers all purchasers of Alen’s Air Purifiers or replacement filters during the applicable statutory period. If you bought the BreatheSmart 45i, the BreatheSmart FLEX, or a replacement filter marketed as HEPA, you may be a class member regardless of which state you live in.
• The California sub-class carries additional remedies under California’s UCL, FAL, and CLRA. If you purchased in California, you may be entitled to full restitution of all monies paid, interest at the highest rate allowed by law, and attorneys’ fees.
• Alen was given until January 14, 2026 to respond to the legal notice and provide relief. It did not. The complaint is now in federal court. Class certification is the next procedural step.

• FTC (Federal Trade Commission): The FTC has direct enforcement authority over false advertising claims for air purifiers and HEPA filters. It has previously entered Consent Decrees in virtually identical cases (see In the Matter of Honeywell, FTC File No. 962-3154). A complaint can be filed at ftc.gov/complaint.
• CFPB (Consumer Financial Protection Bureau): Covers deceptive practices in consumer product sales. While primarily financial-sector focused, the CFPB accepts complaints about deceptive product marketing and unfair commercial practices. File at consumerfinance.gov/complaint.
• California AG (Office of the Attorney General): California’s UCL and FAL, both cited in this lawsuit, can be enforced by the state AG independently of private litigation. File consumer complaints at oag.ca.gov.
• EPA (Environmental Protection Agency): The EPA’s indoor air quality program monitors product claims related to air filtration and indoor pollution. It does not directly regulate product advertising but is a source of HEPA standards documentation that consumers can use to evaluate competing products. See epa.gov/indoor-air-quality-iaq.

• Share this filing with your community. The complaint is public record. If you are part of a wildfire-affected community group, an asthma support network, a COVID-19 mutual aid collective, or any health-focused community organization, circulate the case information. People who bought these products during emergencies deserve to know their legal options.
• Demand transparency from retailers. The BreatheSmart 45i and FLEX are sold on Amazon. Amazon maintains a mechanism for product listing complaints under its Customer Product Safety Reporting tool. If you purchased this product and believe the HEPA label is fraudulent based on this lawsuit, you can report the product listing directly to Amazon.
• Before buying any air purifier, verify third-party HEPA certification. Look for products verified by AHAM (Association of Home Appliance Manufacturers), which publishes independent CADR (Clean Air Delivery Rate) ratings. Look for filters certified under EN 1822 or ISO 29463. A company that actually passes these tests will advertise the specific certification, not just the word “HEPA.”
• Support legal aid organizations that fund class action access. The reason this lawsuit exists is because Bursor & Fisher, P.A. and Sinderbrand Law Group took on the cost of independent lab testing and litigation preparation before a single dollar of recovery was guaranteed. Organizations like the National Consumer Law Center fund legal infrastructure that makes these cases possible for ordinary people. Find them at nclc.org.