air purifier

Hey guys I'm looking for a legitimate deal on a good air purifier. I'm looking to spend at most $350 however I would prefer to spend less. I'm looking to buy one because I can no longer stand the pollen, dog hair, and dust that are flying throughout my house.

After some research the ones I have in mind are;
Surround Air Multi-Tech XJ-3000D [amazon.com]

Sanyo ABC-VW24 [amazon.com]

Honeywell 50250 [amazon.com]

Hoover WH10600 [amazon.com]

Surround Air XJ-3800 [amazon.com]

Whirlpool AP51030K [amazon.com]

Rabbit Air BioGS SPA-421A [amazon.com]


Thanks in advance for your replies, tips and suggestions,
ntrisKKT

consider buying a couple of units for $350, instead of one unit for $350. i have a winix plasmawave off of amazon for $150 that does a nice job on my first floor. then i bought a $99 kenmore for my daughter's room. the kenmore i believe is a rebranded winix, both work really well and i've been pleased.

at high speeds, both sound loud like a table fan at high. during the night, they both have a feature to not let the fan go over medium speed, so sleeping with it on has not been a problem.

google air purifier, and there's a website like air-purifier.com or something like that that has pretty good reviews and info.