An ideal disinfectant that meets all the stated requirements does not exist today. Taking as a basis the requirements and taking into account the profile of the work of a particular medical institution, it is necessary to develop criteria for the selection of disinfectants used in medicine from the list of recommended ones, which should include: the properties of the materials and objects to be disinfected. So, for the purpose of processing premises, the choice is made on drugs that have instructions in the guidelines for the possibility of their use for this object, a spectrum of antibacterial action. According to this criterion, disinfecting agents are evaluated in relation to their detrimental effect on viral, bacterial, fungal pathogens. However, some drugs do not neutralize all of the listed types, the possibility of combining the stages of processing medical devices. The market offers a large number of products with combined action that provide disinfection and sterilization at the same time or combine pre-sterilization cleaning and disinfection. There are also agents with universal action. They can be used both for disinfection of medical instruments and for disinfection of surfaces, furniture, medical equipment, dishes, linen, plumbing equipment, cleaning equipment. Means with properties other than disinfectant (surface disinfection + deodorization + washing effect) facilitate the work of the medical staff, the shelf life of the prepared working solutions and the possibility of their reusable use. This property of a disinfectant affects its economic viability for a medical facility. It should be remembered that some modern disinfectants used in medicine can be used only during one work shift, while other solutions can be used for 1-3 weeks. Thus, each individual medical institution can choose a drug convenient for use from a wide range of disinfectants with different shelf life of the finished disinfectant; convenience in working with the disinfectant. The very concept of "ease of use" implies its solubility, release form, temperature regime of disinfectant action, smell, preparation conditions, storage stability, duration of action, degree of toxic effect on humans. The toxicity of the drug manifests itself when it is inhaled, disinfectant gets into the gastrointestinal tract and when it comes into contact with the skin. The most serious is undoubtedly the inhalation effect on humans. Inhalation of disinfectant happens much more often compared to accidental ingestion. The inhalation hazard is assessed according to the zone of acute toxic effect. In medical institutions, it is possible to use drugs belonging to 3 and 4 hazard classes (class 3 - moderately hazardous agents that can be used by medical personnel without the use of personal protective equipment, but in rooms from which patients are taken out; class 4 - low-hazard agents, the use of which is permissible for patients ). This is especially important when choosing a disinfectant used for current cleaning, the degree of aggressiveness to disinfected materials is cost-effective. It is calculated when calculating the cost of one liter of working solution. You should take into account the period during which the working solution is suitable, and remember that some products are concentrated.
Ear care is just as important as eye care. However, people make more visits to opticians and ophthalmologists (ophthalmologists) than to otolaryngologists (otolaryngologists) to check the health of their ears! We know one secret that will calm your conscience a little if you have been testing your hearing for a long time. The secret lies in the fact that there are special means to protect a person's hearing and take care of their ears. These remedies are called earplugs or ear plugs, from the phrase "keep your ears". Earplugs are able to reduce the level of ambient noise, while leaving the ability to hear others or completely block the progress of sounds to the ears - it all depends on the material of manufacture and the situation in which the earplugs are used.