A hazard detector includes a chassis configured to house components of the hazard detector. The chassis includes a front defining a central aperture. The front has a domed contour such that an outer edge of an inner portion extends beyond an outer periphery of the front. The inner surface tapers from the outer edge toward the inner portion. The detector includes a mesh formed to the contour of the front so the mesh is flat against the front. The mesh defines an aperture corresponding to the central aperture. The detector includes a grille secured to the chassis that defines an aperture corresponding to the central aperture and defines openings positioned along the grille. An inner surface of the grille includes a contour corresponding to the contour of the front so the mesh is flat against the inner surface. The mesh is positioned between the grille and the chassis.