The research article by B. Krcmar and T. Vylita, ‘‘Unfilterable ‘geoaerosols’, their use in the search for thermal, mineral and mineralized waters, and their possible influence on the origin of certain types of mineral waters’’, misinterprets our hypothesis on a macroscopic quantum effect responsible for the anomalous data reported in the article. We are not disputing the experimental facts reported in the article, nor the authors’ suggested explanation of the origin of mineral waters. The key misunderstanding that Krcmar and Vylita appear to have of our hypothesis is that they do not realize the particles in question are bound particles. These particles are not in air as moving free particles. If they were free particles, they would get localized (decohered) in about 10 s, and would behave as ordinary aerosol particles. They would be collected by filters and would not display any anomalous behavior. Then it would be proper to express their concentration in lg/m. If our hypothesis is accepted, however, then it is wrong to express the concentration in lg/m (their Figs. 2 and 3). The proper way is to express it as the total amount found in the adsorber. The authors report twice on the particles’ ‘‘independence from the air flow speed’’. We agree with that finding and we explained this behavior in two papers: by R.F. Holub et al. (2001), and in a more detailed and mathematical manner in ‘‘Localisation of a bound particle outside the potential well’’, by R.F. Holub and P.K. Smrz (accepted by Can J Phys). There are other errors that follow from this key misunderstanding described above. For instance, in the quoted article, Bouwmeester and others (1997) talk about teleporting a quantum state, about ‘‘...transfer of the quantum state of a particle onto another particle using quantum entanglement’’. There are no entangled quantum states in our process. There is only the quantum state of a bound particle and the process is based on its decoherence. Hence, to say that the theory proposed by Holub and Smrz (unpublished data) is similar to what was published by Bouwmeester and others (1997) is simply wrong. In fact, the whole sections ‘‘Introduction’’, ‘‘Theoretical basis of the MFE method’’ and ‘‘Conclusions’’ should be carefully rewritten. We are willing to do that if the authors Krcmar and Vylita would agree. We also think it Received: 12 October 2001 / Accepted: 30 October 2001 Published online: 1 February 2002 a Springer-Verlag 2002