(CTA). CT angiography is a type of medical exam that combines a CT scan with an injection of a contrast media to produce pictures of blood vessels and tissues in a part of your body. The contrast is injected through an intravenous (IV) line started in your arm or hand.
The best way to deal with it is just to ask the landlord â in writing â to replace the carpets, pointing out that they were old and stained when you moved in (hopefully this will have been noted on a check in inventory). Common sense says that carpets should really be replaced every 5-10 years.
How often to change your air filters can depend on the following: the type of air filter you are using; the overall indoor air quality; how many pets are in the home; the number of people occupying the home, and; the level of air pollution and construction around the home For basic 1-3 air filters, manufacturers usually direct you to change them every 30-60 days. If you suffer from light to moderate allergies, you could upgrade the air filter or change them [even more often|more frequently|every few weeks]3].