25W Quartz UVC+Ozone Germicidal Lamp Ultraviolet Light Bulb E27/E26 110v Cleans Air

It does produce a lot of Ozone which some people might find off putting and I expect the UVC kill range is probably limited to areas directly exposed to it. Also never look directly at the lamp and only use it in an empty room for an hour or so. Bulbs like this really should only be used on a proper base which has a switch on delay and an auto timer to switch off. I must say the bedroom it was tried in did seem fresher but that could be the Ozone effect.

This light is very effective. It is a powerful UVC germicidal light that creates a *lot* of ozone. I have it 4 stars for scent because I expected lots of ozone.

My wife works in Healthcare but not front line and has to reuse her limited N95 mask supply. N95 masks should not be wetted at all - even with alcohol - because it removes the electric charge that helps trap microbes and particulates. I used this bulb in a UVC steribox built from Home Depot boxes and Reflectix. It's big enough to sanitize groceries, mail, masks, and even Amazon deliveries - and leaves my alcohol and sanitizer wipes for other uses.

I just used my bulb for the first time in my basement. I left it on for a half an hour and it did produce a lot of ozone. I wouldn't call it over powering as some people have described, nor would I call it "nasty". I would liken it to a strong sense of bleach. I left the area closed off for about 2 hours before returning and now there is just a mild ozone smell - a pleasant fresh and clean smell like you get after a thunderstorm int he summer.

The bulb itself appears well made. I didn't notice any quality defects as one reviewer complained. I'll be using it over the coming days and weeks throughout the house and will report any problems. If I report no changes - then it is working the same with no complaints.