...it would be most helpful if the OP included the make/model of the air purifier that arrived at his front door. From there, us consumer report nerds could help determine if the one you now have is actually worthless or not
I think air purifiers can be helpful for people who have problems with their airways, bronchial issues. But as far as contracting some illness I doubt it bacause those germs will be fine people you contact away from the house or those who live in the house with you. Those away from the house will see no effect. Those in the house are most likely your family whom you kiss, hug and touch often, again, no effect from the purifier. But if you have bronchial issues the purifier could certainly help lessen the symptoms.
I’m not sure how the portable units work, but my family has been in the HVAC business since the early 1930’s and they were amongst the first purveyors of the “fixed” systems that were incorporated into the HVAC systems themselves. My mother suffered from terrible allergies and life improved dramatically for her when Dad finally got around to installing one in our house. Being the cheap bastard that I am, I just buy the best furnace filter for allergen capture that I can and I make sure I faithfully swap it out every 2 or 3 months. They are very effective for the price......but mechanical type (or “electrostatic”) air purifiers are still the better choice if you can afford it.
Nice assumption. I don't smoke, anything. Never have smoked a ciggarette, and the last time I did cronic was..... 2012. You may leave now.
Air purifiers can be a mixed bag, but they do work in improving indoor air quality. You can place it in the room where you spend most of your time, and sitting a few feet from it won't hurt. Running it 24/7 is usually fine.