Keeps calling but doesn't leave msg.

It's Health Tek selling Filter Queen air purifiers. The sales pitch works like this: a) you get asked to participate in a survey about air quality in your home and does anyone suffer from asthma. Then b) about 3-4 weeks later, you get another phone call that you've won a prize, in our case, $100 grocery voucher or a hotel stay in one of 80 properties. c) they deliver the prize but before you get the prize, you have to sit through a demo of their product. Much like a condo time share sales pitch. The main company is at http://www.filterqueen.com/healthtek/ If you really have lots of spare time, go for it. Otherwise ignore the survey at the onset.

The same as Vancouver mentioned. They took survey and then called to say you won. The guy showed up with a vacuum and air cleaner. We turned him away.