Ventilating or renewing indoor air consists of removing stale and contaminated air and introducing cleaner and fresher outdoor air. Insufficient ventilation of the home can generate the proliferation of bacteria, molds, excessive accumulation of dust mites, humidity, harmful substances, bad odors, excess CO 2 produced by people and pets, etc., causing health problems, such as irritation of the nose, throat and eyes, cough, headache, mucus, fatigue, chronic rhinitis, difficulty concentrating, etc. Table of Contents What is ventilation and why is it necessary to ventilate homes? Regulatory basis on air renewal in homes Aspects that define the quality of ventilation Until not long ago, the carpentry in the homes was not of very good quality and, through its gaps, outside air entered, ventilating the home; Currently, the carpentry is of very good quality , and creates watertight spaces, perfect for saving on heating and air conditioning, but which require ventilation to eliminate contaminants that are regularly produced during the normal use of buildings. Regulatory basis on air renewal in homes The Technical Building Code is the regulatory framework that defines in Spain the basic air quality requirements that must be met in homes.
Specifically, the HS3 Basic Hygiene and Health Document on indoor air quality defines: the minimum ventilation flows for each room, the types of ventilation systems: hybrid or mechanical, the design and sizing of openings and ducts, the qualities of the construction materials, the requirements for the execution of the installation and maintenance of the ventilation system . efficient air renewal Aspects that define the quality of ventilation The evaluation Lithuania WhatsApp Number List of an air renewal system depends on different factors, some that define the comfort for users, and others, more technical, determined by the ventilation system used, which result in energy consumption. These are classified as follows: Indoor climate , characterized by the environmental conditions of the people inside the building and their perception. Among them, related to the ventilation system, the following stand out: Thermal quality of the environment: Thermal heating and air conditioning installations allow maintaining comfortable environmental thermal conditions for users. Indoor air quality: Chemical substances (CO, CO 2 , O 3 , NO 2 , formaldehydes, radon, aromatic hydrocarbons, etc.
Quality of the acoustic environment: The risk of discomfort or illness caused by noise and vibrations in the facilities must be reduced to a minimum. Thus, when designing a ventilation system it is important to avoid the noise produced by the facilities (air speed in the ducts, fan noise, etc.) and the entry of street noise through the air inlets. The level of energy savings, the technical and qualitative characteristics of the system that define the energy efficiency and the consumption that will occur as a consequence of its operation. Ventilating wastes energy due to the consumption of the fans of the mechanical ventilation system and having to air condition (heat in winter and cool in summer) the air that enters the home from the outside. There are multiple indoor air renewal systems , but each one has certain characteristics and achieves a certain energy efficiency, so there are guidelines that minimize the energy consumption of the ventilation system: Reduce the ventilation air flow while guaranteeing the health of people and the home. Use systems that recover energy from extracted air. Use fans with low electrical consumption motors.