

Health, Wellness & Medical • Season 2 • Episode 37
Nano Clean
Starts From - ₹196
Where to Buy
Product Details
Entrepreneur Background
Prateek Sharma is the founder of Nano Clean. He's a civil engineer. He completed his graduation from IIT Delhi. Prateek Sharma started Nano Clean back in 2017. Prateek Sharma is Season 2's most IIT Delhi-trained air quality technology founder a civil engineering graduate who identified that India's ambient air quality crisis was creating a mass respiratory health emergency that no existing consumer product was adequately addressing at the individual protection level.His founding insight: while air purifiers cleaned the air in rooms and buildings, there was no portable, wearable, personal air purification solution that could protect individuals outside their homes. The Naso 95 nasal filter addressed exactly this gap bringing air purification to the individual's most critical point of air intake (the nostrils) regardless of location.
The Product / Service
Nano Clean is India's most innovative personal air filtration brand using patented nanotechnology (fibre mats engineered at the nanoscale for maximum particle capture efficiency with minimum airflow resistance) to produce the world's smallest wearable air purification system: the Naso 95 nasal filter, which clips invisibly into the nostrils and provides 12 hours of continuous PM2.5, bacterial, viral, and pollen filtration. The technology's key innovation: conventional masks filter air through fabric layers that require the entire face to be covered and seal tightly against the skin. Naso 95 uses nanotechnology to achieve equivalent filtration efficacy through a tiny clip-on insert that leaves the face uncovered, is invisible when worn, and requires no face-fit sealing.
The Ask
Amount Asked: ₹80 lakhs Equity Offered: 2% Implied Pre-Money Valuation: ₹40 crore
Pitch Presentation
The pitch's most commercially challenging disclosure was the revenue trajectory: FY2019-20 at ₹7.6 crore, FY2020-21 at ₹4.9 crore, FY2021-22 at ₹1.1 crore. A company that saw its revenue fall from ₹7.6 crore to ₹1.1 crore over three years despite the COVID pandemic apparently increasing awareness of air filtration and respiratory protection had a specific commercial story to explain. The COVID paradox for Nano Clean was commercially significant: the pandemic should have been the company's greatest market expansion moment. Instead, revenue fell dramatically possibly because the mass adoption of surgical and N95 masks (distributed freely and recommended universally) eliminated the specific consumer education gap that Nano Clean's niche nasal filter had occupied.
Sharks' Reactions & Criticism
Namita Thapar was the most clinically informed Shark for an air filtration product her pharmaceutical background gave her the respiratory health understanding to evaluate the Naso 95's clinical claims. Aman Gupta exited on commercial utility and scale concerns the product required significant consumer behaviour change (inserting a nasal filter before going outdoors) that the mass-market adoption data did not support at sufficient scale for investment returns. Peyush Bansal exited on scale concerns the addressable market of consumers willing to adopt nasal filtration as a regular daily habit at ₹330 per 30-piece packet was not sufficiently large for a meaningful investment return. Vineeta Singh exited on domain expertise grounds beauty brand expertise provides no specific commercial leverage for a nanotechnology air filtration product. Anupam Mittal exited on both utility and scale grounds the combination of declining revenue, commercial scalability questions, and the consumer behaviour change required for nasal filter adoption made the investment case commercially difficult to construct. Amit Jain exited on domain expertise grounds automotive marketplace experience provides no commercial overlap with air purification technology distribution.
Negotiation & Offers
No Shark made a formal offer. All exited before entering negotiation. The declining revenue trajectory (₹7.6 crore to ₹1.1 crore), the Sharks' utility and scalability concerns, and the ₹40 crore implied valuation on ₹1.1 crore FY22 revenue prevented any Shark from reaching an offer stage.
Final Verdict
Prateek Sharma and Amar Gupta left Shark Tank India Season 2 Episode 37 without any investment. All Sharks declined citing commercial utility, scalability limitations for a consumer behaviour-change-dependent product, and the implied valuation's disconnect from the declining revenue trajectory.
Beyond Shark Tank
Nano Clean continues operating the founder's ₹40 crore net worth claim post-Shark Tank suggesting continued commercial activity. Products remain available. The company's 200,000 plus users demonstrate a genuine consumer community that has adopted nasal air filtration as part of their daily health routine. The air quality consciousness in India has continued growing post-COVID with Indian cities regularly recording hazardous AQI levels in winter months, the specific consumer pain point that Nano Clean was built to solve remains commercially real and growing. The challenge of converting environmental awareness into daily product adoption behaviour remains the key commercial hurdle.
