Irina Kosorotova

Education, trainings

  • Higher education from the Tallinn State and Cooperative Trade Technical School
  • Refresher training in Puhastusekspert OÜ since 2000
  • Level 3 of knowledge of the INSTA 800 (EVS 914:2020 in Estonia) standard for agreeing the quality of cleaning and its evaluation
  • Cleaner – instructor level 4
  • Cleaning manager level 5
  • Adult educator level 6


  • Practical work experience in cleaning since April 2007 (Pindi Kinnisvarahaldus OÜ)
  • Manager, Pindi KVH OÜ, August 2008 – February 2018
  • Head of the cleaning service business, Pindi KVH OÜ, February 2018 – March 2019
  • Manager of the maintenance business, Pindi KVH OÜ, April 2019 – July 2019


  • Estonian
  • Russian


See all

Impact of soil and desired cleanliness on working time

Puhastusekspert has been leading the Erasmus+ cooperation project ‘Cost Effective, Need Based Cleaning INSTA800’ for three years. The aim of the project is to exchange experiences between the seven countries that adhere to INSTA800 and to jointly prepare new materials to implement needs-based cleaning.

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Different ways to destroy micro-organisms when cleaning

At the beginning of March, Tuula Suontamo, PhD, held a training course on ‘Cleaning in light of the latest research results’ where she introduced the results of two major studies and the most effective ways to kill micro-organisms. The following gives a brief overview of the different methods of eliminating micro-organisms used in the cleaning industry in Europe today.

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12 fascinating facts about cleaning based on scientific studies

We recently held a training course featuring Tuula Suontamo, a true professional in her field with a PhD in Chemistry from the University of Jyväskylä in Finland and extensive experience in conducting studies on the cleaning of surfaces and putting study results into practice.

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