The presence in the delivery set of the iron of a special
nozzle for delicate fabrics — silk, cotton, etc. Such a nozzle has a smooth surface, and is also designed in such a way as to exclude heating above a certain temperature and the ingress of accidental drops on the fabric when working in the steaming mode. All this prevents tissue damage and allows you to gently and effectively iron them. The nozzle for delicate fabrics is removable and attached to the sole with clips.
Many irons have special settings for sensitive materials, which can eliminate this feature. However, if you have to deal with delicate fabrics often and a lot, it is still advisable to choose an iron with a nozzle.
The steam power supplied by the iron in boost mode.
The steam power is the amount of steam the iron produces per minute. See above for more information on the general meaning of this parameter. And the steam boost mode is a mode of enhanced steaming, when the iron practically “shoots” with a boost of steam; "shot" is usually made by pressing a special button. Steam boost allows you to achieve an intense effect that is not available with conventional steaming; such an impact can be useful, for example, to smooth out heavily rumpled fabrics that would be difficult to deal with in other ways.
A steam boost of 100 g/min or more is said to be sufficient to handle most tough and "unruly" materials. And
models with a powerful steam boost from 200 g/min will definitely not leave even the most dense fabric rumpled. However, there are models with more modest indicators — they are quite suitable for those who need an iron for ordinary household ironing. Moreover, high power, usually, affects the cost. Do not forget about irons with a steam generator, where the performance values are higher, since the purpose of the iron is slightly different.