Question:

“O virtuous Shaikh, may Allâh grant you success. If there is severe dust, is it permissible for me to pray at home out of fear for my health?”

Al-‘Allâmah Sâlih Ibn Fawzân al-Fawzân:

“Yes; if you are affected by the dust – clearly affected; then pray at home. This is an excuse. Yes.”