First Defense Nasal Screen - Shark Tank Update

Joe Moore entered the Season 2 Tank wearing First Defense Nasal Screens over his own nostrils and asked for $500,000 for 10% equity, implying a $5 million valuation. The product consisted of two small, self-adhering external filters designed to cover the nostrils rather than sit inside the nose.

Moore presented it as a less conspicuous alternative for people who wanted to reduce their exposure to airborne particles but did not want to wear a conventional face covering. The filtration and health-performance figures discussed during the pitch were company claims, not independent findings established by the television appearance.

At first, several Sharks reacted with skepticism and humor because the category and the way the product looked were unfamiliar. The tone changed when Daymond John asked about sales and Moore said 1.7 million units had already been sold.

Moore then disclosed an international contract connected to $8 million in future sales and produced the document for the Sharks to inspect. In a later REWORK interview, he described the customer as a Red Crescent organization in the Middle East and said having the contract gave him confidence during the pitch.

With commercial demand suddenly established, the conversation moved rapidly to patents, production, how the investment would be used, and competing deal structures. Barbara Corcoran declined because she believed educating consumers about an unfamiliar product category would be expensive.

Kevin O'Leary opened the bidding with $500,000 for 20% equity plus a 15% royalty, and Mark Cuban indicated that he would participate alongside him. Daymond countered with $800,000 for 30% plus a 10% royalty.

O'Leary then proposed buying the entire company for $1 million, while Daymond revised his own proposal to $1 million for 30% with a royalty that would continue until his investment was recovered. Robert Herjavec shifted the negotiation from an investment to an acquisition, first offering $2 million for the whole business while allowing Moore to retain a 10% royalty.

Robert then doubled the buyout offer to $4 million with the same royalty. It was described as the largest offer made on Shark Tank at that point. Moore did not reject the economics casually.

He later explained that a 10% royalty was unusually attractive, but he did not yet understand what selling the company outright would mean and feared being separated from the business before its potential was clear. He also had existing shareholders to consider and wanted to remain involved.

Moore countered Robert at $5 million for the company plus a 15% royalty. Robert declined and withdrew. Cuban, O'Leary, and John then combined on the final televised proposal: $750,000 for 30% equity plus a 10% perpetual royalty.

Moore secured one additional concession—Dallas Mavericks season tickets from Cuban—and accepted the joint offer on camera. The pitch therefore ended with one of the season's most competitive bidding sequences, a rejected $4 million acquisition proposal, and a three-Shark handshake agreement that remained subject to post-show due diligence and final contracts.

The televised agreement was $750,000 from Mark Cuban, Kevin O'Leary, and Daymond John for 30% equity plus a 10% perpetual royalty, but the handshake deal did not close. In a 2018 REWORK interview, Joe Moore said the post-show due-diligence process continued for nearly nine months.

One of the Sharks advised him not to stop running or growing the business while the paperwork was pending, so Moore continued accepting contracts and pursuing new opportunities. Over that period, the company's circumstances changed.

Moore said he still wanted the Sharks' experience and involvement, but he became concerned that taking additional money later could progressively dilute his stake until he was no longer the majority shareholder. The parties ultimately did not complete the investment, leaving the televised agreement as an on-air deal rather than a closed transaction.

After Shark Tank, Moore continued expanding First Defense through manufacturing and regional distribution relationships. A 2020 customer case study from long-term manufacturing partner Marian described the engineering work, material trials, and production process used to make the product manufacturable at scale.

Marian reported producing three filter sizes and 13 localized packages or instruction-language versions, and said First Defense was selling in more than 40 countries at that time. The manufacturer also stated that production occurred in its FDA-registered, ISO 13485-certified facility; that describes the manufacturing facility and should not be read as FDA approval of the product itself.

An India distribution announcement said First Defense began testing the market there in early 2016 before finalizing an exclusive arrangement with Filter Your Life Healthcare Private Limited. The product also has a documented intellectual-property history.

U.S. patent records identify Joseph K. Moore as the inventor of respiratory nasal filter patent 8,110,061 and nasal filter structure patent 9,132,300. Public patent listings currently describe those patents as active, with adjusted expiration dates in 2030 and 2033 respectively, although patent-database status labels are not a substitute for a legal opinion.

More recent announcements show the international distribution strategy continuing. In October 2024, First Defense appointed Breathe Eazy PTY LTD as its exclusive distributor for Australia and New Zealand.

On March 24, 2026, it named Filter Your Life Netherlands the exclusive distributor for the Benelux region covering the Netherlands, Belgium, and Luxembourg. The 2024 and 2026 company-issued releases both said worldwide sales had surpassed 30 million units.

That is a company-reported cumulative unit total, not independently audited revenue or proof of profitability.

Today, the official Filter Your Life storefront remains online and offers the self-adhering nasal screens in small, medium, and large sizes, while the company continues inviting distributor and wholesale inquiries. Those active sales and distribution channels support classifying First Defense as still operating.

A secondary business profile, citing ZoomInfo, estimated annual revenue at $4 million in 2020. Because that figure is not drawn from a company financial statement and is several years old, it should be treated as a rough historical estimate rather than verified current revenue.

No company-verified current annual revenue, company valuation, profit figure, or outside ownership breakdown has been publicly disclosed. The previously circulated $50 million estimate could not be substantiated and should not be presented as revenue or as a verified valuation.

The documented record supports a durable international business, but it does not support a precise claim about what the company is worth today.