Analysis of cleanliness in interiors

Measurements of air microorganisms and evaluation of interior air quality

Air quality

Do you want to know if your facility is really clean?

If used disinfection is really effective? And how much disinfection is enough?

  • We can provide professional measurement of microorganism concentration in interiors for the purpose of hygienic contro
  • We can provide air quality measurement in working and residential areas according to the newest directives that relate to hygienic requirements for ventilation and air-conditioning systems.

Several countries demonstrated that transmission of COVID-19 from one person to another can be decelerated or even stopped.  Regulation of WHO (World Health Organization) of March 31, 2020, regarding elimination of spread of SARS-CoV-2 (COVID-19) recommends:

  • Evaluation of interior air quality (IAQ) and monitoring in real time and environment.
  • Regular inspection of air-conditioning and filtration systems
  • Collection of samples and monitoring of industrial hygiene
  • Collection of samples and testing of water safety (including legionella)
  • Trainings and knowledge of safety and health protection
  • Psycho-social support and comfort of personnel.


How to eliminate risk of SARS-CoV-2 (COVID-19) contamination?

  • Block as many possibilities of virus transmission as possible.
  • Respect the barriers, mainly social distance.
  • If applicable, use face protection – masks. (Be careful, incorrectly applied mask can lead to virus contamination)
  • Monitor air cleanliness in interiors.
  • Reduce surface contamination by means of regular and correct cleaning.
  • If possible, eliminate presence of aerosols, mainly in interiors.
  • Avoid presence of irritating chemical and solid pollutants in the air by introducing suitable means for provision of good quality of interior air.


Air contaminated with viruses, bacteria and fungi threatens health. Regular inspections of air in the interiors represent an effective means of protection.  From the statement of the WHO (World Health Organization), it results that even if COVID-19 is transmitted from one person to another mainly by small droplets from nose and mouth, when an infected person coughs, speaks or breathes, it is necessary to pay attention to quality of the interior air, condition of filters and air exchange rate in the interiors. It is important to check correct functioning of ventilation, air exchange and to provide suitable quality of interior air.

Bio-aerosol consists of particles in the air, which could contain microorganisms – viruses, bacteria, fungi, or other particles that came from live organisms (pollen grains, plant seeds, wooden dust, animal fur particles, animal secrets, insect, etc.).  All these particles exist in the air either separately or on a suitable carrier (dust particles, drops – e.g. so called droplet infection. The droplet infection is transmission of viruses (cold, flu, including so called birds flu, etc.) or bacteria (tuberculosis, etc.) in the “mist” of contaminated droplets of slime, saliva, etc. in the air. 


For the purpose of inspection and keeping the so called healthy inner environment in the interiors and buildings, hygienic limits of some air microorganisms were defined by means of the EU legislative regulations, as well as by means of WHO recommendations.


Professional and qualified team of Cleanliness Certification Center, s.r.o. employees performs measurements of air microorganisms and air quality in working and residential areas according to the newest directives related to the hygienic requirements for ventilation and air-conditioning systems (SWKI VA104-01 / VDI 6022 ).

Analysis of cleanliness in the interiors – measurements of air microorganisms and air quality

  • Measurement of air quality in residential facilities, hotels, restaurants.
  • Measurement of air quality school and pre-school facilities, 
  • Measurement of air quality v medical environment, ambulances, waiting room areas.
  • Measurement of air quality in transition nodes – airport areas, mass-transport facilities.
  • Measurement of air quality in closed areas of sport facilities, fitness-centres.
  • Measurement of air quality in closed cultural and social facilities – theatres, cinemas, closed clubs, entertainment centres.
  • Measurement of air quality in shopping malls, operational areas, production areas.
  • Inspection of installation and functioning of air-conditioning and ventilation systems.
  • Inspection of effectiveness of disinfection and disinfection agents.
  • Analysis of clean areas according to EN ISO 14698 (Inspection of bio-contamination).


We perform analysis of clean areas and air inspection in close cooperation with prominent laboratories and with representatives of regional authorities of hygiene and public health.