100 % chemical-free – just water & steamReply within 24 hTennengau, Salzburg & Bavaria99.999 % germ reduction (log 5)Recommended by the BVLKFree, no-obligation site visitIdeal for allergy sufferers, children & petsFor homes and businesses
🎃 Autumn offer: 10 % off window cleaning Hello! Call us: +43 664 7518 4114
Kraus holt's raus A company ofAir Pearl Solutions

Clean. Chemical-free.

Professional chemical-free cleaning, building cleaning & air hygiene.

We stand for a new generation of professional cleaning in Austria and neighbouring Bavaria: completely chemical-free, innovative and rigorously hygienic. With modern system and steam technology we clean gently on materials and without leaving residue. The result: visibly clean, deep-cleaned and free of harmful substances.

Tap being cleaned chemical-free with micro dry steam
99.999 %

Germ reduction with micro dry steam (log 5). Recommended by the BVLK.

Michael Kraus
Only Kraus gets it out.Michael Kraus, Managing Director
Austrian property caretaker
As seen on: RTL Austria, ProSieben Austria, VOX, stern, SAT.1, SWR
Autumn 2026 · Tennengau, take note

Window cleaning with 10 % off

A clear view for the darker months. Streak-free, including frames and window sills. The offer applies to jobs booked in autumn 2026.

Autumn 2026 offer: window cleaning with 10 % off, Tennengau take note
This is what we clean with

MediCleanTEC. A new way to clean.

The Micro Cleaner MCT-II (made in Italy) works with micro dry steam: 180 °C hot at a pressure of 9 bar. Dry hot steam instead of wet steam. That means faster hygiene, fewer germs and cleaning that is gentle on materials. Just water, no cleaning agents.

180 °Chot micro dry steam
9 barsteam pressure
100 %chemical-free

Recommended by the BVLK. After its own field test, the German Federal Association of Food Inspectors (BVLK) recommends the system for the food industry, Europe-wide for 2026.

HotelsRestaurantsMedical practicesBusinessesSanitaryKitchensWellnessSchoolsNurseriesCar interiorsMattressesUpholstery & carpets
Would you like to use the device yourself?

Sales are handled by our partner company Air Pearl Solutions. Presentations are offered throughout Germany and Austria, are completely non-binding and there is no obligation to buy.

Presentation by Air Pearl Solutions
Thumbnail of the Hotel Gerstl field videoWatch the field video on YouTube: Hotel Gerstl reference
MediCleanTEC Micro Cleaner MCT-II in stainless steel
Seal: chemical-free cleaning, 100 % natural and environmentally friendly

Why chemical-free?

Because clean doesn't have to smell of cleaning products. Whatever is left in your rooms after cleaning is later breathed in by you, your children and your guests. With micro dry steam and modern system technology, nothing is left behind except cleanliness.

“When someone notices after my chemical-free cleaning how pleasant their home feels, that gives me goosebumps every time.”
Michael KrausManaging Director, Kraus holt's raus

Send an online enquiry

Click through a few short steps: what needs cleaning, how big is it, by when? That way we know what it's about in advance and will get back to you within 24 hours to arrange a site visit. Prefer to talk in person? Give us a call or leave your number.

Mobile & WhatsApp+43 664 7518 4114
Emailta.eimehc-enho-rebuas@eciffo

What our customers say

Genuine Google reviews from the Tennengau and Salzburg.

 

How it works

From the first call to the handover. Straightforward, with one dedicated contact person.

  1. Get in touch

    Online, by phone or via WhatsApp. Reply within 24 hours.

  2. Site visit & quote

    We look at the surfaces, materials and level of soiling and give you a clear quote.

  3. Chemical-free cleaning

    Gentle on materials with system and steam technology. No residue.

  4. Check & handover

    A joint final inspection, so that everything is right.

A look at our work

Real jobs. Tap an image to view it full size.

A service of our partner companyAir Pearl Solutions

Ventilation systems (HVAC)

Ventilation and air hygiene are handled by our partner company Air Pearl Solutions. As a TÜV Austria certified ventilation specialist holding the VDI-MT 6022 category B certificate, Michael Kraus works there professionally, to the highest hygiene standards and in line with the latest technology.

  • Standard-compliant cleaning & hygiene inspections
  • Documented inspections in line with ÖNORM
  • Cleanliness concepts for new & existing systems
  • Maintenance & inspection intervals to ÖNORM H 6021 & H 6030
  • Services to ÖNORM H 6020 for medical areas
  • Inspection reports & test records under the AStV
  • Cleaning of HVAC & kitchen ventilation systems
  • Filter replacement, repairs & spare parts service
  • Installation of access panels
  • Replacement of V-belts

Your partner for hotels, restaurants, healthcare, businesses and housing.For organisations that rely on verified hygiene, standard-compliant processes and lasting cleanliness.

We work to
ÖNORM EN 15780
Cleanliness of ventilation systems: classification, testing, maintenance
ÖNORM H 6020
Ventilation systems in rooms used for medical purposes
ÖNORM H 6021
National supplement to EN 15780: cleanliness, maintenance, inspections
ÖNORM H 6030
Ventilation systems for kitchens, incl. maintenance and cleaning
VDI-MT 2052 part 3
Maintenance and inspection of commercial kitchen extraction systems, important for fire safety
1×
§ 13 (1) AStV

Inspection at least once a year, together with emergency lighting, alarm and fire detection systems.

15 months
§ 13 (1) AStV

Longest permitted interval between two inspections.

3 years
§ 13 (5) AStV

How long inspection records must be kept at the workplace.

More about ventilation systems at Air Pearl Solutions ›
TÜV Austria ventilation specialistVDI-MT 6022 specialist, cat. BHACCP compliantRecommended by BVLKDIN EN ISO 15883-1:2025-07

Bacteria reduction: every step means ten times fewer germs

With micro dry steam we achieve a bacteria reduction of 99.999 %, i.e. log 5. Our cleaning system is recommended by the German Federal Association of Food Inspectors (BVLK).

Log reductionExample
Log
reduction
Bacteria reduction [%]Start: 100,000,000 bacteria
190%10,000,000
299%1,000,000
e.g. Sagrotan or similar399.9%100,000little protective effect
499.99%10,000
MediCleanTEC – Microcleaner599.999%1,000optimal protection
Sterilisation level – operating theatre699.9999%100Abrasive to surfaces
Cleanroom – CIP development799.99999%10Extremely expensive & complex
899.999999%1

DIN EN ISO 15883-1: washer-disinfectors

Michael Kraus, owner

Your cleaning professional in Kuchl

Behind Kraus holt's raus is Michael Kraus. A company of Air Pearl Solutions, based in Kuchl in the Tennengau. Short distances, one dedicated contact person and one standard: cleanliness you can see and hygiene you can measure.

As a TÜV Austria certified ventilation specialist and VDI-MT 6022 specialist, we look after private households as well as hotels, restaurants and businesses.

A company ofAir Pearl Solutions
Address
Markt 166c, 5431 Kuchl
Phone
+43 664 7518 4114
Email
ta.eimehc-enho-rebuas@eciffo
Service area
Tennengau, Hallein, Salzburg, neighbouring Bavaria

Frequently asked questions

Can't find your question? Give us a call or send us a WhatsApp message.

What does “chemical-free” mean for you?

We clean with micro dry steam, water and modern system technology instead of chemical cleaning agents. This means no residue is left on surfaces, textiles or in the air.

Is the cleaning suitable for allergy sufferers, children and pets?

Yes. Because no chemicals are used, no irritating residue is left behind. Mites, germs and allergens are removed thoroughly.

Where do you work?

From Kuchl throughout the Tennengau, in Hallein, the city of Salzburg and the surrounding area, and in neighbouring Bavaria.

How quickly will I get a reply?

We reply to online enquiries within 24 hours. The quickest way is by phone or WhatsApp on +43 664 7518 4114.

How much does cleaning cost?

That depends on the area, the materials and the level of soiling. After your enquiry or a short site visit you will receive a non-binding quote.

When will you offer steam cleaning?

We expect to offer the full range of micro dry steam services from December 2026, once the master craftsman qualification is completed.

How often does a ventilation system need to be inspected?

Under § 13 AStV at least once a year, at the latest after 15 months. Records must be kept for three years. Inspection, cleaning and documentation are handled by our partner company Air Pearl Solutions.

Do you also work for businesses?

Yes. We clean for hotels, restaurants, medical practices, businesses and housing. Ventilation and kitchen extraction systems are handled by our partner company Air Pearl Solutions.

How does the autumn offer work?

In autumn 2026 you get 10 % off window cleaning. Simply click “Claim the offer” or mention the autumn offer in your enquiry.

Partners & brand quality

Thermostar and MediCleanTEC
Moerman
Unger
Kiehl
EU Ecolabel DE/020/366

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