my home is my castleDelicious roast scentAiring against house smell blows heat out of the houseFresh air in the house - our wish!Odour filter - silent helper in the kitchenActivated carbon with pore structureActivated carbon with pore structureProduction of odour filters at helsaActivated carbon makes odors disappear
06.12.2018 helsapedia

“My home is my castle!”

helsa activated carbon filters transform our home zones into comfort zones

A cosy home is the next best thing to paradise for many people today. It’s a place to relax after a hard day’s work, spend leisurely hours on the couch, enjoy pleasurable moments dining with friends or luxuriate in a nice, hot bath. 

“My home is my castle!” A place of refuge, a meeting point, a sphere of freedom, a private domain where I truly feel comfortable, put simply: “Home”. 

But as they say: If you want to make an omelette, you have to break a few eggs. Anywhere we live, sleep, cook and sweat will naturally also harbour our dirty laundry, rubbish and all types of scents and smells. Just think of the aromatic combination of cold smoke and the lavatory or how about a bouquet of pan-seared cod and a freshly worn hiking boot? There are rooms and homes that always seem to smell terrible, whether because of the vapours coming from floor coverings or paint or because they rarely come in contact with fresh air. This can be unpleasant, especially when the odour of the apartment seeps from every pore of the inhabitants and permeates their clothing and hair.

Household odours are everyday companions and exceedingly annoying. How can we fend off these foul-smelling foes? Naturally there are household products that can help, along with lots of ventilation. However, airing out our homes also allows valuable and expensive heat to escape.

But did you know that high-performance air filters are now also being used more and more often in homes to put an end to unpleasant odours right at the source? Anyone looking for these odour killers will find them close by – perhaps even somewhere they never thought to look. In the refrigerator or extractor hood, even in the cat’s litter box or the organic waste bin – and, of course, in air purification devices and vacuum cleaners. Many shoe soles, mattress covers and even garment bags now feature odour-absorbing filters. 

On another note: Recently some good friends of mine invited me over to a house-warming party. It was a lovely evening and we had a chance to talk like rarely before. It might have also been due to the fact that we spent the evening cooking together. An open-plan kitchen close to the couch offers a relaxing atmosphere for leisure cooking. The steaks, paired with green beans wrapped in bacon and the flambéed crêpes Suzette for desert were pure poetry. What also amazed me was the noticeable effectiveness of the new extractor hood: It enabled me to enjoy a virtually odour-neutral evening. This innovative, powerful technology is what makes cooking enjoyment in the living room possible in the first place.

Here at helsa, we have worked on solutions for air and gas purification for years. After all, we manufacture the active inner workings of odour filters. What interests us most are air contaminants that are gaseous themselves, meaning that they can no longer be removed with a dust filter, not even a high-quality one. This includes all types of scents. But how does one capture these individual fragrances wafting through the air?

A highly intriguing question, isn’t it? The answer appears simple and comprises a single word: Adsorption.

The word adsorption stems from the Latin verb “adsorbere”, which means “to suck in”. Adsorption is the term that is used when gases or liquids accumulate, i.e. are trapped on a solid surface. Since most odours are gaseous the principle of adsorption should work to trap them, shouldn’t it? It should; and it does. If a solid surface – which experts refer to as an adsorbent, by the way – such as this is present then it can be used to hold or trap odours.  

One of the oldest and most popular means of adsorption is activated carbon. It also plays a decisive role in helsa filters.

As the name implies, activated carbon consists mainly of carbon; it is black and it has a highly porous structure. Imagine a natural sponge, filled with large, medium, small and even the smallest of pores and you have a good idea of how a grain of activated carbon is structured. Just like a natural sponge sucks up the water, activated carbon holds on to gas molecules. The pore system gives it a very large inner surface, in some cases ranging from 800 to close to 2,000 m²/g of carbon depending on the type of activated carbon. We’d like to ask you to use the power of your imagination one last time to truly wrap your head around this number. Imagine a football stadium. Two grams of activated carbon have the same surface area as the entire playing field. This is a tremendous amount of area and illustrates the unique effect and storage capacity of this material.

We use a variety of activated carbon for helsa odour filters. But we’ll tell you more about these in our next blog post. For now we wish you lots of success in your search for odour filters near you and we look forward to your next visit to our helsa blog. 

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