Designer Daan Roosegaarde has installed the "largest smog vacuum cleaner in the world" in Rotterdam to help improve the city's air quality (+ movie). More about Daan Roosegaarde's Smog Free Tower opens in Rotterdam
Maison&Objet 2015: this cast-iron candle holder by Norwegian designer Lars Beller Fjetland automatically puts out the flame just before the wick burns out (+ movie). More about Lars Beller Fjetland designs self-extinguishing Moment candlestick for Wrong for Hay
Norwegian designer Andreas Engesvik has created a range of textiles for Danish brand Georg Jensen Damask, with subtle patterns based on hand-drawn lines. More about Andreas Engesvik's hand-drawn grids inform textile patterns for Georg Jensen Damask
London Design Festival 2015: Turkish designer Bilge Nur Saltik has created a line of hand-cut patterned glass vessels that create a kaleidoscope effect when filled with flowers (+ movie). More about Bilge Nur Saltik's glass OP-vases create kaleidoscopic floral effects
Music: patterns of light spring up around a Martian-like world in this music video that directors Pablo Barquin and Junior Martínez created for Floating Points (+ movie). More about Light painting illuminates an arid landscape in Floating Points' Silhouettes music video
Pomo summer: textile designer Camille Walala's collection of home accessories patterned with bold graphics influenced by the Memphis Group will launch at this month's London Design Festival. More about Memphis patterns influence homeware by Camille Walala
Movie: Dutch designer Richard Hutten explains why he designed a chair with a distinctive X-shape on the back in the next movie in our exclusive video series for Italian furniture brand Moroso. More about Richard Hutten's X-Chair for Moroso is "actually quite complex"
Maison&Objet 2015: designers at Italian research studio Fabrica have created a set of glass sculptures for presenting fruit. More about Fabrica designers display fruit in unusual ways with Tutti Frutti glass sculptures
Maison&Objet 2015: French designers Ronan and Erwan Bouroullec have created a range of outdoor furniture with curving slatted surfaces for Danish brand Hay (+ slideshow). More about Bouroullec brothers design slatted Palissade outdoor furniture for Hay
Danish-Icelandic artist Olafur Eliasson's solar energy company Little Sun has launched a Kickstarter campaign to fund the production of a mobile phone charger with a built-in lamp. More about Olafur Eliasson launches crowdfunding campaign for solar-powered mobile phone chargers
Dutch designer Nikki Gonnissen and artist Pieke Bergmans have created a series of flags for the 2015 Brazilian Design Biennial that reference the colours and shapes of buildings around the host city of Florianopolis. More about Thonik and Pieke Bergmans create flags based on Brazilian architecture for design biennial
London Design Festival 2015: Norwegian design studio Kneip has created a set of four functional sculptures that measure and report on weather conditions (+ movie). More about Kneip designs Weathered series of sculptural atmospheric sensors
New flat-pack pieces from St Louis-based furniture company Artifox include a vertical bike rack and a standing desk with a writable surface (+ slideshow). More about Artifox unveils quick-assembly wood furniture that ships in flat-pack boxes
Fashion designer Pauline van Dongen has created a coat for workers on the Wadden Sea World Heritage site, with detachable solar panels on the pockets for charging electronic devices (+ slideshow). More about Pauline van Dongen’s Solar Parka charges electronic devices for nature reserve workers
Our most visited story last week was about an installation of 100,000 white balloons at Covent Garden in London. Stories about the child-friendly inflatables are always popular on Dezeen so we've assembled our all-time top ten balloon posts, including a bridge, an airship and a levitating bench. More about Dezeen's ten most popular stories about design with balloons
IKEA is inviting consumers in Belgium to recycle their old catalogues into stuffing for a geometrically patterned cushion designed by Charles Kaisin. More about Shredded IKEA catalogues used to stuff Charles Kaisin's Küss cushions
London Design Festival 2015: an exhibition by Swedish gardening house Coloni and trend forecaster Studio Aikieu will celebrate the potential of "undesirable" and wild-growing species in towns and cities. More about Coloni and Studio Aikieu celebrate weeds with Plants Out Of Place exhibition
The owner of the former Moss gallery in New York is selling 60 pieces – from lighting fixtures to homeware – by leading designers including the Campana Brothers, Marcel Wanders, Philippe Starck and Studio Job (+ slideshow). More about Design purveyor Murray Moss auctions off items from private collection
Visitors to an Innsbruck gallery can crawl from room to room via a series of bouncy net tunnels installed by design collective Numen/For Use. More about Tube net installation by Numen/For Use designed as a "giant convulsing centipede"
Google has revealed a simplified new logo, a month after the tech giant announced a company-wide restructure with the launch of umbrella brand Alphabet. More about Google rebrands with new sans-serif logo