Clean rooms are those rooms specifically designed to keep the levels of contamination under the parameters considered as a standard. The levels of humidity, temperature, pressure, particles in suspension and lighting also have to be measured, and they will be subject to exhaustive inspections so as to give assurance that they would not interfere or alter the chemical composition of the product. This type of room arises from the need of processing pharmaceutical, food, cosmetic products, and more, ensuring their quality as much as possible, and that they are free of microbes and bacteria dangerous to health, that is to say, the use of clean rooms avoids direct product contamination, as well as that produced in contact with other products (cross-contamination).

Clean rooms are much more expensive precisely due to their characteristics with regard to sterility and insulation, although in certain areas, such as the medical or the pharmacological, it goes without saying that such investment has to be fulfilled since fully aseptic means are required aimed to perform surgical operations, or to manufacture new medicines. It should be added that the room design and the control of its parameters is as  important as its enclosure solutions. A hermetic door will help maintaining the right levels uncomplicatedly, besides making access easier, particularly if it is automatic.

Control over the air. Air in clean rooms is sterile since it is renewed several times an hour thanks to special HEPA air filters, which retain all types of particles in suspension, including pathogenic elements.

Pressure. Pressure in these rooms has to be more elevated than in the outside, in such a way that when their doors are opened, pressure difference (which is attained as a result of a locking system) allows the air in the inside to exit but not come in, thus ensuring that cleaning parameters remain stable.

Temperature and humidity. Both parameters play a determining role if diverse microorganisms come to proliferate, which could damage or modify the structure of the manufactured products in such manner that, controlling both of them and keeping them under the set conditions is an indispensable requirement and easily achievable thanks to the conditions set in clean rooms.

Cleanness. As one could imagine, there are restrictive inspections in regards to cleanness. Corners in such rooms are usually round in order that dirt does not cumulate, and hence products do not get contaminated. But besides the room cleaning protocol, their users also have to comply with severe hygiene norms, which include the use of special habiliment avoiding the adherence of any substance or element that could contaminate the workplace.

It is highly important that in laboratories, we stick with the established premises regarding room cleanness, insulation and sterility, as well as the elements included in them, since it is there where medicines will be manufactured, or some treatments will be subject to experimentation, and they need the fullest quality, as well as guaranteeing that no circumstance will modify neither their quality nor their functionality.