Buying guide
Air Purifier
 
Five things to consider
Enjoying clean, pure air in your home is easy with an air purifier, but there’s a lot to think about when it comes to choosing which model is right for you. This handy guide will help you decide what features are most important to you, from filter technology to additional functionality.
Why do you need an Air Purifier?
Deciding why you need an air purifier will help narrow down the type of technologies that you will need. If someone in your home has allergies, then choose a purifier that features a HEPA filter, or if you’re looking for an easy way to neutralise cooking smells in your kitchen, a purifier with carbon filtration is ideal. For all-around use then look for a model that features a combination of filtration stages – the more stages of filtration, the cleaner the air will be.
What do Air Purifiers do?
Reduce pollen, allergens and odours
Reduce dust and pet dander
Circulates cleaner, fresher air
What Filter would work best?
Once you’ve decided where you are going to be using your air purifier, it’s important to consider the filter best suited for your room.You should also consider the ease of buying and installing replacement filters. We have ensured this process is as easy as possible, with replacement filters sold online and instructions on replacing the filter included in the product manual.
Activated carbon filters neutralises any odours and traps potentially harmful gasses and chemicals such as cigarette smoke. While HEPA filters are able to retain up to 99.97% of polluting particles such as pollen, bacteria, pet dander and spores, making them ideal for allergy sufferers. Ionisers work great with this technology as they cause the particles to clump up, being more easily captured by the HEPA filter, so for more efficient operation look for a product that has both.
What size do you need?
Different purifiers can be used for different sized rooms, so make sure that you pick a model that will best suit the room dimensions it will be used in. It is also worth considering whether you want your purifier to be standing on the floor or ‘table-top’ style, depending on where in the room you decide to use it. The weight and physical dimensions should also be thought about if you intend on moving the purifier around the home as needed.
What Features do you need?
Some air purifiers like the DXAPV3N Purifier feature Viro3 technology which produce negative ions that help combat positive ions that are prevalent in airborne viruses. It is also worth considering a purifier with differing day/night speed settings. Dimplex air purifiers offer this feature where the night setting allows for the air purifier to run at a very low fan speed to enable you to get a good nights sleep with minimal noise intrusion.
 
What is EN 14825?
EN 14825 sets out the temperatures, part-load conditions, and calculation methods for determining the Seasonal Coefficient of Performance (SCOP) and Seasonal Energy Efficiency Ratio (SEER). It applies to the operation of air-conditioning units, process chillers, and particular types of hybrid heat pumps. The values used to define the SCOP can be calculated or measured. If measured values are applied, the standard covers the applicable test methods.
What is EN 14511?
EN 14511 sets out standardised performance and rating terms for air-conditioning units, heat pumps and liquid chilling packages that supply space heating or cooling. EN 14511 is used for a determination of the Coefficient of Performance (COP) that gauges the performance of a heat pump.
What is diversity in HVAC systems?
What is diversity in HVAC systems, and how does it affect HVAC system design and specification for residential developments?
Diversity in HVAC systems within medium to large scale developments acknowledges that it is unlikely the maximum demand of all individual users of the system will arise concurrently. The total heat demand in a building is likely to be lower than the maximum or peak demand at various points in the heat network.