Installing ceramic or porcelain tile is both an art and a science. Tile installers must know the composition of the tiles as well as how to lay them in place attractively. Besides the normal costs of labor and materials, a tile project's costs vary by the type of sub-flooring to be used as a foundation for the tile.
Three things can cause an EMI problem: A signal source creates some kind of noise, there is a transmission path for the noise, and/or there is a receiver sensitive enough to be distorted by the noise, as shown in Figure 1.
House dust mites. One of the biggest causes of allergies are dust mites, which are tiny insects found in household dust. You can limit the number of mites in your home by: choosing wood or hard vinyl floor coverings instead of a carpet. fitting roller blinds that can be easily wiped clean.