Carpet cleaning supplies, cleaning shampoos, stain removing liquids, material and equipments can be purchased from the carpet store, retailers and on line shops.
Some web sites specialize in selling only cleaning materials and offer products at discount or wholesale prices.

Carpet cleaners are available in various sizes to suit every requirements. The quantity of cleaning liquid / powder required varies from manufacturer to manufacturer, the type of cleaning machine, concentration of the cleaner, size of the carpet and how soiled the carpet is.

Quantity of purchase
If not sure of what quantity is required, it is advisable to purchase a smaller pack, even if the cost is a bit on the higher side, and then purchase a bigger pack. This is also beneficial if the purchased cleaning brand is a first time purchase.

Check the instruction sheet
It is very important to check and follow the directions provided by the manufacturer. Since most of the carpet cleaners are chemical based, an excessive usage or an improper usage, other than prescribed, may damage the carpet. This may also happen in case of natural cleaners, so proper care is essential.

Shelf life of the cleaner
Some of the products have a shelf life. It is necessary to buy carpet cleaner packs which will used within the shelf life of the product.

Expiry date of the cleaner
If an product has a specified expiry date, make sure to use the carpet cleaner within the expiry date. It is highly recommended that the product is not used after the expiry date, as the chemicals within the cleaner might create problems for the carpet. It is better to spend a small amount on a new cleaner pack than trying to save by using a product that has passed its expiry date.

Use only on suggested carpet and rug types
If the carpet cleaner suggests that you use it for a particular type of carpet, make sure that that it is used on only that type of carpet. Most of the carpet cleaners are universal so they can be used with any type of carpets. But, make sure they are universal, before using them.