Home of fresh air

Vallox Oy

Good ventilation is the best life assurance for your house. It has an effect on the condition and the lifetime of the building and also has a significant impact on the comfort of living. Ventilation is also an investment in your and your family's health. It is therefore not unimportant what the ventilation technology is like.

Vallox is a well-known company that has developed ventilation systems in Finland for almost 50 years. High-quality ventilation technology is combined with a simple, elegant design and ease of use.

Silently and unobserved, Vallox takes care of ventilation of the building, keeping indoor air fresh and clean to breathe. The cleaner the air you breathe is, the better you feel and the more you have energy. Vallox operates reliably in all seasons, in all weather conditions. Vallox has invested especially on the development of the energy efficiency of ventilation units as ventilation needs to be on all the time.

Vallox is the home of clean and fresh air. And a home with Vallox is a healthy and comfortable home.


The development of modern residence-specific ventilation units started with fans manufactured as war reparations.

The aircraft factory of Valtion metallitehtaat (State Metal Works) or Valmet in Tampere started to make fans for the drying of sawn timber in the 1940s. In 1964, the lack of space in Tampere led the company to move the manufacturing of ventilation units that were still mainly manufactured for industrial use to the Pansio factory of Valmet where shipbuilding decreased. In the following year, Valmet launched a roof ventilator series, including a product for residential use as well.

Because of the rapid urbanisation in the 1960s, more and more blocks of flats were built with a central extract air blowing system, and cooker hoods were developed to be connected to the system. Consequently, Valmet started to manufacture cooker hoods in 1970 at first on a subcontracting basis.

In 1971, when there was no more room at Pansio, Valmet founded a factory in Loimaa and moved the assembly of roof ventilators there.  With the energy crisis of the early 1970s, ventilation for residential use was developed, and in 1976 Valmet launched an energy-saving air heating system called Kotilämpö. During the next decade 15,000 Kotilämpö systems were sold. Other well-known products included Saituri, an extract air pump, and Valmet Vesitakka, a water jacket for a fireplace. The Loimaa factory was expanded again. The Loimaa factory of Valmet was very innovative. When the solar heating system intended for one-family houses was launched in 1980, it had an advanced microprocessor control.  In the middle of the 1980s, the legendary MUH Ilmava, a supply and extract air exchanging unit equipped with heat recovery, was launched. It is still the most sold ventilation unit model ever in Finland.

In 1985, the ship ventilation department of the Pansio factory of Valmet was merged to the Loimaa factory, which then also started to manufacture ventilation units for ships.

In the early 1980s, Valmet and Wärtsilä rearranged the manufacturing of paper machines and ships. Wanting to focus on the paper industry, Valmet in 1987 sold the Loimaa factory specialising in ventilation units to the existing management as an MBO deal. Vallox Oy was born.

A few years later, Vallox focused on residential ventilation and sold the ship ventilation department to Novenco As from Denmark. In 2002, a German family business TOP AIR AG bought the majority of shares at Vallox.

Vallox continues to focus mainly on residential ventilation. In 2011, Vallox celebrated the 40th birthday and completed the fourth expansion of the Loimaa factory. Nowadays, 50 per cent of the net sales of Vallox consist of exports.

In the 2000s, Vallox has continued to develop energy-efficient ventilation units and is the only company in Finland to have received an A+ energy rating. In 2015, a new generation of MyVallox ventilation units was launched. These units can be controlled remotely with a cloud service and they have a built-in humidity sensor that adjusts ventilation power automatically as needed.

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