An important difference between the tested gaming chairs and most regular office chairs is the possibility to tilt the backrest nearly all the way down. That way, you can truly ‘lay flat’ in a gaming chair. That said, we think the usefulness of this is limited, because if you sit in such a way you will have a hard time looking at your monitor or television. While it might be pleasant for the needed breaks, we mostly consider this a gimmick.
A less pleasant detail of the tilt able (and relatively heavy) high backrests of gaming chairs is that the central ‘pole’ where the seat rests is placed relatively far back compared to that same seat. This prevents the chair from toppling if you lay back, but also has an unpleasant side effect. For some chairs it is placed so far back that the chair easily topples forward when you sit on the edge of the chair. When testing the gaming chairs this happened to us a few times, and we can say that it is definitely not a pleasant experience. Not all chairs have this problem; out of the models we tested the Speedlink Regger and the AKRacing Nitro are the ones that truly have this issue.
There are different standards for office chairs, that are important especially with business use. The NPR 1813 standard applies to the Netherlands, and on a European level we have the NEN-EN 1335 standard, that is implemented per EU-country. Both standards describe for example the dimensions that must be met, but also contain safety requirements in regards to the finish of the parts and a series of tests that should guarantee the stability of the chair. We asked every manufacturer in what way their chairs meet these standards; only Noblechairs was able to confirm that their chairs explicitly meet the EN 1335 standard. DXRacer published test reports on their own site for multiple series of chairs, where we found EN1335 tests for the D(rifting) and F(ormula) series. For the R(acing) chair that we looked at we were unable to find a report. AKRacing states on their website that all their chairs meet the EN 1335 standard, as does Arozzi. Vertagear also states this, but does not say for which chairs. Considering the issues we have seen with the stability for some models that do have such a certificate you can question the value of it. For the Nitro racing chairs we were only able to find that they meet the English BS 5852 standard, but that standard only applies to fire safety.