We got the plug and play purifier by o2cure in November 2020 when everyone was still trying to find ways to protect themselves against Covid 19... we researched many products available in the market but this was probably the only one that showed studies related to SARs and Cov virus.
We got 3 of these and installed them in our house and office spaces. When my brother got Covid that is when we realised that the product was actually helpful in keeping the overall air in the house virus and bacteria free as none of the other family members got affected by the virus. Additionally having this installed in my brothers room helped in reducing breathing issues for him as he was able to access clean air despite of being in the same room in quarantine.
We are very happy with the results and surely recommend it to others