Woosh Air, Smart Air Filters, was started by Winston Mok in June 2020. As of September 2023, Woosh Air’s net worth is $5 Million, and they’re pulling in a whopping $200K in annual revenue.

On October 14, 2022, they appeared on Season 14 of Shark Tank USA and made a deal with Kevin O’Leary, for $500,000 for 10% equity + $0.50 cent royalty. The final valuation was $5 Million, same as the the founder’s initial estimate amount of $5 Million.

Woosh Air is still in business. They have expanded its product line to include air purifiers for cars and homes. The company has sold their product through the official website.

Woosh Air’s Net Worth

Net worth$5 Million
Annual Sales Revenue$200,000
Lifetime Sales
Shark Tank InvestorKevin O’Leary
FounderWinston Mok
Employees40 to 50

Woosh Air Net Worth Timeline

Net Worth 2023$5 Million
Net Worth 2022$4.5 Million
Net Worth 2021$4 Million
Net Worth 2020$3.5 Million
Net worth valuation 2022 after appearing on Shark Tank  $5 Million
Net worth valuation 2022 before appearing on Shark Tank  $5 Million

Woosh Air Pitch on Shark Tank

Company nameWoosh Air
ProductSmart Air Filters 
EpisodeSeason 14 Episode 4
FounderWinston Mok
Asked for$500,000 for 10% equity
Final deal$500,000 for 10% equity + $0.50 cent royalty
SharkKevin O’Leary
LocationSouth San Francisco, California, United States

Woosh Air Founder

Woosh Air was founded by Winston Mok in 2020. Winston Mok, founded after the 2018 forest fires in California, highlighted the need for better air filters. Before founding Woosh Air, Mok was a Senior Product Manager at Google. Mok has a background in Engineering, Computer, and Mechatronics. Woosh Air’s founder, Winston Mok, has a net worth of 5 Million USD as of 2023.

Key accomplishments

2023Developing one of the first smart air filters for homes that automatically monitors air quality in real-time and transmits data via WiFi to a mobile app
2022Creating a product that can convert a Heating, Ventilation, and Air Conditioning (HVAC) system into a house air filter


From their beginnings on Shark Tank to their current status as a thriving business. They have proven that with the right idea and execution, anything is possible. We can’t wait to see the future for Spretz and its continued success.

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