Is there some kind of carpeting that won't collect dust deep within its root? We're going to have most of our carpeting changed to laminate because I have HORRIBLE dust allergies, but we want to keep the carpeting in the living room and dining room. Is there some kind of hypo-allergenic carpeting?
I believe Berber carpeting helps with keeping the dust out as well as indoor/outdoor carpeting. Your best bet is to call a carpet store and ask them. May be a little more expensive than the cheap kind. Why don't you get rid of carpet all together and do some area rugs without wool and dust holding carpets. Then you can wash them or take them out side and shake them. Best of luck to you.
Dust is in the air, when it settles it goes into the carpeting and a deep pile will be harder to clean so get a Berber or even a commercial carpet if you can stand it. None of it is hypoallergenic in regards to dust, but some of it is made with less formaldehyde or other chemicals.and may be marketed it as hypoallergenic in that regard. If that's not your problem, then just go with the low pile Berber and a really good vacuum. You might want to let the carpet air out a few days before installation. An area rug with a pile will hold dust too. Its the pile that is deep that doesn't allow the vacuum to get all the dust out. The material, wool, cotton, nylon doesn't matter, its the construction.
You'll be doing your allergies a major favor by removing wall-to-wall carpeting and replacing it with hardwood or tiled floors. If you don't have the option of removing carpets, what can you do? Vacuum, vacuum, vacuum!
Regardless of the carpet material, if the carpet pad you choose is not hypoallergenic as well, the possibility of allergens persists. Choose a carpet pad that has moisture resistance, giving it anti-bacterial, anti-fungal and anti-microbial properties. If you are gluing the carpet to the floor, choose adhesives with low VOC emissions.
