Air Conditioning Fumigation Agent: Evaporator Cleaning - Coil-Rite, Renewz, Liqui Moly Klima Fresh

Hello, I know that the topic has already been rolled out so please do not exterminate me. Well, I'm looking for a proven agent for fumigation evaporators by direct method and available for purchase in our country.
I found a few fungicides and I would like you to be able to comment on the effectiveness of these agents or bring effects.
http://www.czyszczenie-klimatyzacji.com.pl/in...prezentacja-konkretnego-produktu/items/6.html
COIL-RITE, RENEWZ, CLEAN-N-SAFE, FOAM-A-COIL available at http://www.wentylacyjny.pl/1412-2-2-preparaty-do-czy Cleaning-i-dezynfcji-klimatyzacji-rectorseal. html
Liqui Moly Klima Fresh

Buddy K2 foam on the allegro-I recommend

http://ex.tunap.com/pl/obszary-dzielalnoci/auto/produkty/p180.html
Expensive but effective.

I use WURTH for mold removal and customers are satisfied